000 00279nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aElster and Ohle
245 0 _aArchiv for hydrobiologic
260 _bF.S.Publications
260 _c1973
365 _b247.80
942 _cBK
999 _c205823
_d205823