000 00428nam a2200157Ia 4500
008 130223s9999 xx 000 0 und d
080 _a639.2.053.7
100 _aDahm, E.
245 _aEIFAC expriments on pelagic fish stock assessment by acoustic methods in lake co
260 _aRome
260 _c1985
300 _a14 p.
440 _aNo. 15; Food and Agriculture Organization
901 _pS38554
942 _cB
_2udc
999 _c121344
_d121344