which was the only participant from greece?
olympiacos fc
col : year | winners | runners-up | third | fourth row 1 : 1971 | cologne | royal sporting club anderlecht | real zaragoza | - row 2 : 1972 | hamburg sv | sociedade esportiva palmeiras | real zaragoza | - row 3 : 1973 | borussia mönchengladbach | pfc cska sofia | real zaragoza | west ham row 4 : 1974 | real zaragoza | eintracht frankfurt | fc molenbeek brussels strombeek | partizan belgrade row 5 : 1975 | real zaragoza | club atlético boca juniors | fk vojvodina | boavista futebol clube row 6 : 1976 | real zaragoza | górnik zabrze | ofk belgrade | olympiacos fc row 7 : 1977 | pfc cska sofia | real zaragoza | fk radnički niš | rcd espanyol row 8 : 1978 | real zaragoza | club nacional de football | pfc sliven | fk trepca mitrovica row 9 : 1980 | rcd espanyol | real zaragoza | sporting lisboa | partizan belgrade row 10 : 1981 | real zaragoza | nottingham forest football club | tisza volán sc | club atlético osasuna row 11 : 1982 | manchester united f.c. | real zaragoza | mtk hungária fc | budapest honvéd fc row 12 : 1983 | real zaragoza | club américa | aston villa football club | politehnica timişoara row 13 : 1984 | videoton sc | universidad católica | real zaragoza | defensor sporting club row 14 : 1985 | fútbol club barcelona | real zaragoza | - | - row 15 : 1986 | real zaragoza | cologne | - | - row 16 : 1987 | real zaragoza | checoslovaquia | - | - row 17 : 1988 | club atlético peñarol | real zaragoza | - | - row 18 : 1989 | real zaragoza | club de fútbol atlante | aragon | - row 19 : 1990 | fc dinamo moscow | real zaragoza | real betis balompié | - row 20 : 1991 | real zaragoza | dinamo bucharest | - | - row 21 : 1992 | real zaragoza | fútbol club barcelona | - | - row 22 : 1993 | club de regatas vasco da gama | real zaragoza | - | - row 23 : 1994 | real zaragoza | cska moscow | - | - row 24 : 1995 | real zaragoza | club nacional de football | - | - row 25 : 1996 | real zaragoza | hamburg sv | - | - row 26 : 1997 | società sportiva lazio | real zaragoza | - | - row 27 : 1998 | parma | real zaragoza | - | - row 28 : 1999 | real zaragoza | feyenoord rotterdam | - | - row 29 : 2000 | real zaragoza | parma | - | - row 30 : 2001 | real zaragoza | fc twente | - | - row 31 : 2002 | real zaragoza | athletic club | - | - row 32 : 2003 | real zaragoza | chievo | - | - row 33 : 2004 | club atlético de madrid | real zaragoza | - | - row 34 : 2005 | real zaragoza | real madrid club de fútbol | - | - row 35 : 2006 | real zaragoza | associazione sportiva livorno calcio | - | - row 36 : 2007 | real zaragoza | juventus football club | - | - row 37 : 2009 | società sportiva lazio | real zaragoza | - | - row 38 : 2010 | sociedad deportiva huesca | real zaragoza | cd teruel | -
which was the only participant from greece?
Year Winners Runners-up Third Fourth
1971 Cologne Royal Sporting Club Anderlecht Real Zaragoza -
1972 Hamburg SV Sociedade Esportiva Palmeiras Real Zaragoza -
1973 Borussia Mönchengladbach PFC CSKA Sofia Real Zaragoza West Ham
1974 Real Zaragoza Eintracht Frankfurt FC Molenbeek Brussels Strombeek Partizan Belgrade
1975 Real Zaragoza Club Atlético Boca Juniors FK Vojvodina Boavista Futebol Clube
1976 Real Zaragoza Górnik Zabrze OFK Belgrade Olympiacos FC
1977 PFC CSKA Sofia Real Zaragoza FK Radnički Niš RCD Espanyol
1978 Real Zaragoza Club Nacional de Football PFC Sliven FK Trepca Mitrovica
1979 Real Zaragoza NK Dinamo Zagreb Vasas SC FK Sarajevo
1980 RCD Espanyol Real Zaragoza Sporting Lisboa Partizan Belgrade
1981 Real Zaragoza Nottingham Forest Football Club Tisza Volán SC Club Atlético Osasuna
1982 Manchester United F.C. Real Zaragoza MTK Hungária FC Budapest Honvéd FC
1983 Real Zaragoza Club América Aston Villa Football Club Politehnica Timişoara
1984 Videoton SC Universidad Católica Real Zaragoza Defensor Sporting Club
1985 Fútbol Club Barcelona Real Zaragoza - -
1986 Real Zaragoza Cologne - -
1987 Real Zaragoza Checoslovaquia - -
1988 Club Atlético Peñarol Real Zaragoza - -
1989 Real Zaragoza Club de Fútbol Atlante Aragon -
1990 FC Dinamo Moscow Real Zaragoza Real Betis Balompié -
1991 Real Zaragoza Dinamo Bucharest - -
1992 Real Zaragoza Fútbol Club Barcelona - -
1993 Club de Regatas Vasco da Gama Real Zaragoza - -
1994 Real Zaragoza CSKA Moscow - -
1995 Real Zaragoza Club Nacional de Football - -
1996 Real Zaragoza Hamburg SV - -
1997 Società Sportiva Lazio Real Zaragoza - -
1998 Parma Real Zaragoza - -
1999 Real Zaragoza Feyenoord Rotterdam - -
2000 Real Zaragoza Parma - -
2001 Real Zaragoza FC Twente - -
2002 Real Zaragoza Athletic Club - -
2003 Real Zaragoza Chievo - -
2004 Club Atlético de Madrid Real Zaragoza - -
2005 Real Zaragoza Real Madrid Club de Fútbol - -
2006 Real Zaragoza Associazione Sportiva Livorno Calcio - -
2007 Real Zaragoza Juventus Football Club - -
2008 Getafe Club de Fútbol Real Zaragoza - -
2009 Società Sportiva Lazio Real Zaragoza - -
2010 Sociedad Deportiva Huesca Real Zaragoza CD Teruel -
2011 Real Zaragoza RCD Espanyol - -
2012 Real Zaragoza RCD Espanyol - -
Olympiacos FC