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003 OSt
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024 _a45671
037 _cTextual
040 _aCSL
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041 _aeng
082 _aG:5:19518, H81;1
100 _aWelch P S
245 0 _aLimnological methods
260 _c1948
300 _ap.
_ccm.
650 _aEcology
942 _hG:5:19518, H81;1
_cTEXL
_2CC
999 _c86848
_d86848