Estadio Nacional, Santiago, Chile (Mar. 16 - Apr. 20, 1952)
MATCH 1
Sunday, March 16, 1952
CHILE 6-1 PANAMA (HT: 4:0)
[Enrique Hormazabal 15’, Andrés Prieto 27’, 45’, 81’, Manuel Muñoz 29’, René Meléndez 65’; Roberto Linares 89’]
CHI: Hernán Fernández, Adelmo Yori, Arturo Farías (C), Víctor Roldan, Carlos Rojas (Osvaldo Sáez), Sergio Cortés,
Enrique Hormazábal, Andrés Prieto, René Meléndez (Sergio Lorca), Manuel Muñoz, Guillermo Díaz.
HC: Luis Tirado
PAN: Everardo Lasso (Gerardo Warren), Félix Tejada, Alfredo Sandiford, Gastón De León, Carlos Lanús Pérez,
Reinaldo Carrillo, Santiago Jordán (Roberto Linares), Antonio Torres, Carlos Martínez (Horacio Rangel),
Luis Carlos Rangel, José Félix De Bello.
HC: Oscar Rendoll (CHI)
Referee: Godfrey Sunderland (ENG)
MATCH 2
Sunday, March 23, 1952
URUGUAY 3-1 MEXICO (HT: 2:1)
[Sergio Bravo 27’ og, Oscar Miquez 40’, Julio César Abbadie 87’; Carlos Septién 35’]
URU: Roque Máspoli, Víctor Rodríguez, Matías González, Schubert Gambetta (Héctor Vilches), Obdulio Varela, Ubire Durán,
Alcides Gigghia, Julio Pérez (Javier Ambrois), Oscar Miguez, Julio César Abbadie, Ernesto Vidal.
HC: Juan López
MEX: Antonio Carbajal, Raúl Varela, Antonio Félix Battaglia, Alfonso Montemayor, Carlos Blanco, Sergio Bravo,
José Luis Molina, José Naranjo, Adalberto López, Tomás Balcázar, Carlos Septién.
HC: Antonio López Herranz (ESP)
Referee: William Crawford (ENG)
A1: Charles McKenna (ENG)
A2: Walter Manning(ENG)
MATCH 3
Sunday, March 23, 1952
PANAMA 1-7 PERU (HT: 0:4)
[Carlos Martínez 72’ pen; Valeriano Lopez 5’, 9’, 20’, 85’, 87’, Guillermo Barbadillo 44’, Ernesto Morales 60’]
PAN: Gerardo Warren, Gastón De León (José Mendoza), Félix Tejada, Carlos Lanús Pérez, Reinaldo Carrillo, Manuel Figueroa,
Alfredo Sandiford, Antonio Carlos Torres, Carlos Martínez, Luis Carlos Rangel (Horacio Rangel), José Félix De Bello.
HC: Oscar Rendoll (CHI)
PER: Walter Ormeño, Guillermo Delgado, Diego Agurto, Lorenzo Pacheco, Cornelio Heredia, Luis Calderón, Gilberto Torres,
Roberto Drago, Valeriano López (Carlos Lazon 89’), Guillermo Barbadillo, Ernesto Morales (Roberto Castillo).
HC: Alfonso Huapaya
Referee: Godfrey Sunderland (ENG)
A1: Charles McKenna (ENG)
A2: Walter Manning (ENG)
MATCH 4
Wednesday, March 26, 1952
CHILE 4-0 MEXICO (HT: 2:0)
[Enrique Hormazábal 20’, Andrés Prieto 30’, 82’, Guillermo Diaz 86’]
CHI: Sergio Livingstone, Arturo Farías, Víctor Roldán, Adelmo Yori, Sergio Cortés, Carlos Rojas, Enrique Hormazábal,
Andrés Prieto, René Meléndez, Carlos Tello, Guillermo Díaz.
HC: Luis Tirado
MEX: Antonio Carbajal, Raúl Varela, Antonio Battaglia, Alfonso Montemayor (José Antonio Roca 46’), Carlos Blanco,
Sergio Bravo, José Luis Molina, Luis Luna, Adalberto López, Tomás Balcázar (José Naranjo 70’), Carlos Septién
(Guillermo García Vélez 46’).
HC: Antonio López Herranz (ESP)
Referee: Godfrey Sunderland (ENG)
A1: Charles Dean (ENG)
A2: Walter Manning (ENG)
MATCH 5
Sunday, March 30, 1952
URUGUAY 5-2 PERU (HT: 3:1)
[Ernesto Vidal 2’, Oscar Miguez 11’ pen, 29’, 87’, Julio Perez 74’; Guillermo Barbadillo 19’, Valeriano Lopez 75’]
URU: Luis Radiche, Matías González, Héctor Vilches, Víctor Rodríguez (Juan Carlos González), Obdulio Varela
(Osvaldo Balseiro 9’), Omar Ferreira, Alcides Gigghia, Julio César Abbadie, Oscar Miguez, Julio Pérez, Ernesto Vidal.
HC: Juan López
PER: Walter Ormeño, Guillermo Delgado, Diego Agurto, Lorenzo Pacheco, Dagoberto Lavalle (Cornelio Heredia), Luis Calderón,
Roberto Castillo, Roberto Drágo (Máximo Mosquera 87’), Valeriano López, Guillermo Barbadillo, Ernesto Morales
(René Rosasco).
HC: Alfonso Huapaya
Sent off: Luis Calderón (PER) 12’
Referee: William Crawford (ENG)
NB: Oscar Miguez missed a penalty kick (saved) at 35’.
MATCH 6
Wednesday, April 2, 1952
CHILE 3-2 PERU (HT: 1:1)
[Andrés Prieto 31´, René Melendez 51’ pen, Atilio Cremaschi 86’; Guillermo Barbadillo 14’, Valeriano Lopez 81’]
CHI: Hernán Fernández (Sergio Livingstone), Adelmo Yori, Víctor Roldán, Osvaldo Sáez, Arturo Farias, Sergio Cortés,
Enrique Hormazábal, Andrés Prieto (Atilio Cremaschi), René Meléndez, Carlos Tello (Manuel Muñoz), Guillermo Díaz.
HC: Luis Tirado
PER: Walter Ormeño, César Brush, Guillermo Delgado, Rafael Goyeneche, Cornelio Heredia, René Rosasco (Dagoberto Lavalle),
Guillermo Barbadillo, Valeriano López, Roberto Drago (Máximo Mosquera), Carlos Lazón (Augusto Alvarado).
HC: Alfonso Huapaya
Referee: John Aldbridge (ENG)
MATCH 7
Sunday, April 6, 1952
BRAZIL 2-0 MEXICO (HT: 0:0)
[Baltazar 55’, 71’]
BRA: Castilho, Arati, Pinheiro, Nilton Santos, Bauer, Brandãozinho, Julinho, Didí, Ademir (Pinga 69’), Baltazar,
Rodrigues.
HC: José “Zezé” Moreira
MEX: Antonio Carbajal, Antonio Battaglia, Alfonso Montemayor, Sergio Bravo, Carlos Blanco, Rafael Rivera,
José Luis Molina (Guillermo García Vélez 58’), José Naranjo, Adalberto López (José Luis Lamadrid 69’),
Tomás Balcázar (Luis Luna 85), Carlos Septién.
HC: Antonio López Herranz (ESP)
Referee: Charles Dean (ENG)
A1: Godfrey Sunderland (ENG)
A2: William Crawford (ENG)
MATCH 8
Sunday, April 6, 1952
PANAMA 1-6 URUGUAY (HT: 0:)
[Carlos Martinez 39’; Julio César Abaddie 6’, 14’, 32’, Julio César Britos 64’, Félix Tejada 77’ og, Walter Loureiro 85’]
PAN: Gerardo Warren, Félix Tejada, Manuel Figueroa, José Mendoza, Carlos Lanús Pérez, Reinaldo Carrillo, Roberto Linares,
Antonio Torres, Carlos Martínez, Horacio Rangel (Luis Carlos Rangel), Nelson Castillo.
HC: Oscar Rendoll (CHI)
URU: Roque Máspoli, Matías González, Ubire Duran, Víctor Rodríguez, Osvaldo Balserio, Héctor Vilches
(José Emilio Santamaria), Alcides Ghiggia (Julio César Britos), Javier Ambrois, Oscar Miguez, Julio César Abbadie
(Walter Loureiro), Ernesto Vidal,
HC: Juan López
Referee: Walter Manning (ENG)
MATCH 9
Thursday, April 10, 1952
PANAMA 2-4 MEXICO (HT: 0:2)
[Carlos Martinez 63’ pen, Luis Carlos Rangel 78’; Carlos Septién 18’, 34’, 81’ pen, José Luis Molina 19’]
PAN: Gerardo Warren (Everardo Lasso 47’), Manuel Figueroa, Alfredo Sandiford, José Mendoza, Félix Tejada,
Reinaldo Carrillo, Roberto Linares, Antonio Torres, Carlos Martínez, Horcio Rangel (Luis Carlos Rangel 70’),
José Félix De Bello.
HC: Oscar Rendoll (CHI)
MEX: Raúl Córdoba, Raúl Varela (Saturnino Martínez 46’), Antonio Battaglia, José Antonio Roca, Alfredo Costa,
Sergio Bravo, José Luis Molina, José Naranjo (Luis Luna 58’), Adalberto López (José Luis Lamadrid 70’),
Tomás Balcázar, Carlos Septién.
HC: Antonio López Herranz (ESP).
Referee: Walter Manning (ENG)
A1: Charles Dean (ENG)
A2: William Crawford (ENG)
MATCH 10
Thursday, April 10, 1952
BRAZIL 0-0 PERU
BRA: Castilho, Djalma Santos, Pinheiro, Nílton Santos, Brandãozinho, Bauer (Eli 79’), Julinho, Didí, Baltazar,
Ademir (Pinga 70’), Rodrigues.
HC: José “Zezé” Moreira
PER: Walter Ormeño, César Brush, Guillermo Delgado (Adolfo Cabada 85’), Rafael Goyeneche, Cornelio Heredia,
René Rosasco, Gilberto Torres, Máximo Mosquera (Valeriano López 78’), Manuel Rivera, Roberto Drago, Ernesto Morales.
HC: Alfonso Huapaya
Referee: Charles McKenna (ENG)
A1: Godfrey Sunderland (ENG)
A2: William Crawford (ENG)
MATCH 11
Sunday, April 13, 1952
CHILE 2-0 URUGUAY (HT: 1:0)
[Atilio Cremaschi 5’, Manuel Muñoz 84’]
CHI: Sergio Livingstone, Adelmo Yori, Víctor Roldan, Osvaldo Sáez, Arturo Farías, Sergio Cortés, Enrique Hormazábal,
Atilio Cremaschi, Sergio Lorca, Manuel Muñoz, Guillermo Díaz (Pedro López 63’).
HC: Luis Tirado
URU: Roque Máspoli, Matías González, Héctor Vilches, Juan Carlos González, Obdulio Várela (Osvaldo Balseiro 20’),
Omar Ferreira (Víctor Rodríguez 75’), Alcides Ghiggia, Julio Pérez (Javier Ambrois 70’), Oscar Miguez,
Julio César Abaddie, Ernesto Vidal.
HC: Juan López
Sent off: Julio César Abaddie (URU) 40’, Víctor Roldan (CHI) 40’.
Referee: Charles Dean (ENG)
A1: Charles McKenna (ENG)
A2: Godfrey Sunderland (ENG)
MATCH 12
Sunday, April 13, 1952
BRAZIL 5-0 PANAMA (HT: 3:0)
[Baltazar 5’, Rodrigues 8’, 57’, Julinho 20’, Pinga 70’]
BRA: Castilho, Djalma Santos, Pinheiro, Nilton Santos, Brandãozinho, Eli, Julinho (Friaça), Didí, Baltazar (Ademir),
Pinga (Rubens), Rodrigues.
HC: José “Zezé” Moreira
PAN: Everardo Lasso, Manuel Figueroa, Alfredo Sandiford, José Mendoza, Félix Tejada, Reinaldo Carrillo, Roberto Linares,
Antonio Torres, Carlos Martínez, Horacio Rangel, José Félix De Bello (Santiago Jordán).
HC: Oscar Rendoll (CHI)
Referee: Godfrey Sunderland (ENG)
MATCH 13
Wednesday, April 16, 1952
BRAZIL 4-2 URUGUAY (HT: 2:0)
[Didi 24’, Rodrigues 32’, Baltazar 71’, Pinga 85’; Oscar Miguez 54’, Nelson Cancela 89’ pen]
BRA: Castilho, Djalma Santos, Pinheiro (Gérson), Nilton Santos, Brandãozinho, Eli, Friaça (Bauer), Ademir, Didí,
Baltazar (Pinga 73’), Rodrigues.
HC: José “Zezé” Moreira
URU: Roque Máspoli, Víctor Rodríguez, Matías González, Omar Ferreira, Ubire Durán, Héctor Vilches, Alcides Ghiggia,
Julio Pérez (Walter Loureiro 46’), Oscar Miguez, Julio César Abaddie (Nelson Cancela 87’), Ernesto Vidal
(Ramón Ferrez 73’).
HC: Juan López
Sent off: Eli (BRA) 62’, Oscar Miguez (URU) 62’
Referee: Godfrey Sunderland (ENG)
A1: Walter Manning (ENG)
A2: Charles Dean (ENG)
MATCH 14
Sunday, April 20, 1952
PERU 3-0 MEXICO (HT: 2:0)
[Manuel Rivera 5’, Roberto Drago 16’, Gilberto Torres 86’]
PER: Walter Ormeño, César Brush, Guillermo Delgado, Rafael Goyechene, René Rosasco, Cornelio Heredia, Gilberto Torres,
Manuel Rivera (Valeriano Lopez 73’), Máximo Mosquera (Roberto Castillo 46’), Roberto Drago, Ernesto Morales.
DT: Alfonso Huapaya
MEX: Antonio Carbajal, Saturnino Martínez, Antonio Battaglia, Alfonso Montemayor (José Antonio Roca 39’), Carlos Blanco,
Rafael Rivera (Alfredo Costa 46’), Guillermo García Vélez, José Naranjo (Adalberto Lopez 46’), José Luis Lamadrid,
Tomás Balcázar, Carlos Septién.
DT: Antonio López Herranz (ESP)
Referee: Charles McKenna (ENG)
A1: Walter Manning (ENG)
A2: Godfrey Sunderland (ENG)
MATCH 15
Sunday, April 20, 1952
CHILE 0-3 BRAZIL (HT: 0:2)
[Ademir 9’, 18’, Pinga 86’]
CHI: Sergio Livingstone, Adelmo Yori, Víctor Roldan, Osvaldo Sáez, Arturo Farías, Sergio Cortés (Carlos Rojas),
Enrique Hormazábal, Atilio Cremaschi, Sergio Lorca (René Meléndez), Manuel Muñoz, Guillermo Díaz (Pedro López).
HC: Luis Tirado
BRA: Castilho (Osvaldo 50’), Djalma Santos, Pinheiro, Nílton Santos, Brandãozinho, Eli, Julinho, Didí, Baltazar
(Ipojucan 85’), Ademir (Pinga 55’), Rodrigues.
HC: José “Zezé” Moreira
Referee: Charles Dean (ENG)
FINAL TABLE
BRAZIL 5 4 1 0 14 2 9
Chile 5 4 0 1 15 6 8
Uruguay 5 3 0 2 16 10 6
Peru 5 2 1 2 14 9 5
Mexico 5 1 0 4 5 14 2
Panama 5 0 0 5 5 28 0
SQUADS
BRAZIL
CABAÇÃO, Luiz 23/08/1930 GK Corinthians
CASTILHO, Carlos José 27/04/1927 GK Fluminense
OSVALDO, Alfredo 09/10/1923 GK Botafogo
PINHEIRO, João Carlos 13/01/1932 DF Fluminense
DOS SANTOS, Djalma 27/02/1929 DF Portuguesa Desportos
VIANA, Arati Pedro 03/04/1925 DF Botafogo
BRANDÃOZINHO, Antenor Lucas 09/06/1925 DF Portuguesa Desportos
DOS SANTOS, Nilton 16/05/1925 DF Botafogo
RUARINHO, Rubens 10/11/1928 MF Botafogo
BAUER, Jose Carlos 21/11/1925 MF São Paulo
DA COSTA, Rúbens Josué 24/11/1928 MF Flamengo
BIGODE, João 04/04/1922 MF Fluminense
PEREIRA, Waldir “Didí” 08/10/1928 MF Fluminense
DOS SANTOS, Gérson 14/07/1922 MF Botafogo
DO AMPARO, Eli 14/05/1921 MF Vasco da Gama
FRIAÇA, Albino 20/10/1924 FW Vasco da Gama
MARQUES DE MENEZES, Ademir 08/11/1922 FW Vasco da Gama
DA SILVA, Oswaldo “Baltazar” 14/01/1926 FW Corinthians
RODRIGUES, Francisco 27/06/1925 FW Palmeiras
DE ARAUJO, Ipojucan Lins 03/06/1926 FW Vasco da Gama
PINGA, Jose Lazaro 11/02/1924 FW Portuguesa Desportos
BOTELHO, Julio “Julinho” 29/07/1929 FW Portuguesa Desportos
NIVO, Gabrich 07/09/1927 FW Bangu
MOREIRA, José Alfredo “Zezé” HC
CHILE
LIVINGSTONE, Sergio Roberto 26/03/1920 GK Universidad Católica
FERNÁNDEZ, Hernán 17/03/1921 GK Unión Española
FARIAS, Arturo Segundo(C) 01/11/1927 DF Colo Colo
ROLDÁN, Víctor Luis Fernando 15/10/1921 DF Universidad Católica
WIRTH, Fernando DF Santiago Morning
CAMPOS, José DF Colo Colo
NEGRI, Juan Jorge 05/01/1925 DF Universidad de Chile
YORI, Adelmo 05/03/1928 DF Audax Italiano
SÁEZ, Osvaldo Tomás 29/12/1920 MF Colo Colo
ROJAS, Carlos Rodolfo 02/10/1928 MF Unión Española
CORTÉS, Sergio Ramiro 27/04/1931 MF Audax Italiano
HORMAZABAL, Enrique Daniel 06/01/1931 MF Santiago Morning
CARVALLO, Luis Hernán 19/08/1922 MF Universidad Católica
MELÉNDEZ, René Orlando 13/10/1928 FW Everton
CREMASCHI, Atilio 08/03/1923 FW Unión Española
MUÑOZ, Manuel Jesús 28/04/1928 FW Colo Colo
PRIETO, Andrés Rafael 19/12/1928 FW Universidad Católica
TELLO, Carlos Inocencio 28/02/1929 FW Audax Italiano
DÍAZ CARMONA, Guillermo 29/12/1930 FW Santiago Morning
CARRASCO, Oscar 26/11/1927 FW Audax Italiano
LÓPEZ, Pedro Hugo 25/10/1927 FW Unión Española
LORCA, Sergio Mario 25/12/1929 FW Unión Española
TIRADO, Luis HC
MEXICO
CARBAJAL, Antonio 07/06/1929 GK León
CÓRDOBA, Raúl 14/05/1924 GK Atlas
VARELA, Raúl 29/06/1922 DF León
BATTAGLIA, Antonio Félix (ARG) 19/09/1918 DF León
MONTEMAYOR, Alfonso 28/04/1922 DF León
ROCA, José Antonio 24/05/1928 DF Necaxa
BRAVO, Sergio 27/11/1927 MF León
BLANCO, Carlos (ESP) 05/03/1927 MF Necaxa
MARTÍNEZ, Saturnino Paulo 30/11/1927 MF León
COSTA, Alfredo (ARG) MF León
MOLINA, José Luis MF León
RIVERA, Rafael 24/10/1925 FW Guadalajara
LAMADRID, José Luis 03/07/1930 FW Necaxa
NARANJO, José Alberto 19/03/1926 FW Oro
LÓPEZ Adalberto 04/07/1923 FW Oro
BALCÁZAR, Tomás 21/12/1931 FW Guadalajara
SEPTIÉN, Carlos 18/01/1923 FW Tampico
LUNA, Luis 28/01/1920 FW León
GARCÍA VÉLEZ, Guillermo FW Necaxa
LÓPEZ HERRANZ, Antonio (ESP) HC
NB: Mexico was actually Club León (Mexican league champions 1951-52) reinforced.
PANAMA
LASSO, Everardo GK Ancón
WARREN, Gerardo GK Hispano
CASANOVA, Alejandro GK
LANÚS PÉREZ, Carlos DF Ibérico
CARRILLO, Reinaldo Antonio DF Hispano
TEJADA, Félix DF Ancón
DE LEÓN, Gastón DF Ibérico
FIGUEROA, Manuel DF
SANDIFORD, Alfredo MF Hispano
MENDOZA, José MF
MARTÍNEZ, Carlos MF
RANGEL, Horacio FW Ibérico
DE BELLO, José Félix FW Ibérico
LINARES, Roberto FW Amador
CABRERA, José FW Colón
TORRES, Antonio Carlos FW Ancón
RANGEL, Luis Carlos FW
QUINTERO, Carlos
REYES, Víctor
CASTILLO, Nelson MF Feris
MIRANDA, Venancio
JORDÁN, Santiago
RENDOLL, Oscar (CHI) HC
PERU
ORMEÑO, Francisco Walter 03/12/1926 GK Boca Juniors (ARG)
VELÁZQUEZ, Clemento 13/11/1927 GK Sport Boys
DELGADO, Guillermo Antonio 11/02/1931 DF Alianza Lima
AGURTO, Diego 13/11/1927 DF Sport Boys
PACHECO, Lorenzo 10/08/1919 DF Sport Boys
CABADA, Adolfo DF Municipal
BRUSH, César DF Municipal
LAZÓN, Carlos 05/10/1929 MF Mariscal Sucre
LAVALLE, Dagoberto 25/03/1925 MF Sport Boys
HEREDIA, Cornelio 16/10/1920 MF Alianza Lima
CALDERÓN, Luis 21/06/1926 MF Sport Boys
TORRES, Gilberto 15/08/1928 MF Universitario
ROSASCO, René MF Atlético Chalaco
GOYENECHE, Rafael MF Sportivo Tabaco
DRAGO, Roberto 28/07/1925 FW Municipal
LÓPEZ, Valeriano 04/05/1926 FW Sport Boys
BARBADILLO, Guillermo 09/01/1925 FW Sport Boys
RIVERA, Manuel 15/05/1922 FW Municipal
MOSQUERA, Máximo 08/01/1928 FW Municipal
MORALES, Ernesto 17/05/1927 FW Atlético Chalaco
CASTILLO, Roberto FW Alianza Lima
ALVARADO, Augusto FW Municipal
HUAPAYA, Alfonso HC
URUGUAY
MÁSPOLI, Roque Gastón 12/10/1917 GK Peñarol
RADICHE, Luis GK River Plate
GONZÁLEZ, Matías 06/08/1925 DF Cerro
SANTAMARÍA, José Emilio 31/07/1929 DF Nacional
VILCHES, Héctor 14/02/1926 DF Cerro
RODRÍGUEZ, Víctor Pablo C. 14/02/1927 MF Central
GONZÁLEZ, Juan Carlos 22/08/1924 MF Peñarol
VARELA, Obdulio Jacinto 20/09/1917 MF Peñarol
GAMBETTA, Schubert 14/04/1920 MF Nacional
DURÁN, Ubire MF Nacional
LOUREIRO, Walter MF River Plate
FERREIRA, Omar MF Sud América
GHIGGIA, Alcides Edgardo 22/12/1926 FW Peñarol
BRITOS, Julio César 18/05/1926 FW Peñarol
PÉREZ, Julio Gervasio 19/06/1926 FW Nacional
AMBROIS, Javier 09/05/1932 FW Nacional
MIGUEZ, Oscar Omar 05/12/1927 FW Peñarol
CANCELA, Nelson 21/10/1921 FW Cerro
VIDAL, Ernesto José 15/11/1923 FW Peñarol
ABBADIE, Julio César 07/09/1930 FW Peñarol
BALSEIRO, Osvaldo FW Defensor Sporting
FERREZ, Ramón FW Defensor Sporting
LÓPEZ, Juan HC
Sources: La Nación (Argentina), Jornal do Brasil (Brazil), Sport Ilustrado (Brazil), Esto (Mexico), La Afición (Mexico), Revista Estadio (Chile), El Bien Público (Uruguay), El Deber (Peru), Panamá América (Panama)
Thanks to Pablo Ciullini for earlier version of this file and to Marcelo Assaf for additional information
Prepared and maintained by Erik Francisco Lugo and Eduardo Mendoza for the Rec.Sport.Soccer Statistics Foundation
Authors: Erik Francisco Lugo and Eduardo Mendoza
Last updated: 2 Feb 2021
(C) Copyright Erik Francisco Lugo, Eduardo Mendoza and RSSSF 1998/2021
You are free to copy this document in whole or part provided that
proper acknowledgement is given to the authors. All rights
reserved.