[1] BUNDESINST MILCHFORSCH,KIEL,FED REP GER
[2] UNIV AGR SCI GODOLLO,ELECTRONMICROSCOP LAB,GODOLLO,HUNGARY
[3] UNIV KIEL,FRAUENKLIN,D-2300 KIEL 1,FED REP GER
[4] INST MEERESFORSCH,KIEL,FED REP GER
[5] UNIV AGR SCI GODOLLO,GAME BIOL STN,GODOLLO,HUNGARY