Bierhoff, Hans-werner, Frey, Dieter (1) Frey, Dieter, Bierhoff, Hans-werner (1) Ina Grau, Hans-werner Bierhoff (1) Degner, Werner, Lutze, Hans, Smejkal, Erhard, Heisel, Uwe (1) Hyde, Bruce (australian National University), Kopp, Drew (1)