共 40 条
- [1] BERG K, 1943, FOLIA LIMNOL SCAND
- [2] Butcher R.W., 1930, INT REV HYDROBIOL, V24, P47, DOI DOI 10.1002/IROH.19300240104
- [3] BUTCHER RW, 1937, DEP SCI IND RES, V6
- [7] CHANDLER DC, 1937, ECOL MONOGR, V7, P444
- [8] DENHAM SC, 1938, INVEST INDIANA LAKES, P17
- [9] Eddy S., 1932, Bulletin of the Illinois Natural History Survey, V19, P469
- [10] EMBODY GC, 1928, 17TH S ANN REP, P17