000 00320 a2200121 4500
008 180725b xxu||||| |||| 00|
100 _a: Bretschko G.
245 _aAdvances in river bottom ecology /
_c: G. Bretschko and J. Helesic
260 _b: Backhuys
_c1998
300 _a344p.
700 _aJ. Helesic
942 _2ddc
_cBK
999 _c6707
_d6707