共 25 条
[21]
World Health Organization, 1990, Technical report series 804, V797, P98
[22]
ZEMPLENI S, 1993, ERNAHRUNGS UMSCHAU, V40, pB17
[23]
1994, DTSCH GESELLSCHAFT E
[24]
1994, FORSCHUNGSINSTITUT K
[25]
1991, DTSCH GESELLSCHAFT E