共 10 条
- [1] Berglund F., 1971, NORD HYG TSKR S, V4, P1
- [2] BLIGH EG, 1971, ICES COUNCIL M, P1
- [4] Helminen M., 1968, Suomen Elainlaak, V74, P87
- [5] Henriksson K, 1969, Nord Hyg Tidskr, V50, P54
- [6] HOLDEN AV, 1970, FIRMP70E63 FAO UN TE
- [7] LOFROTH G, 1970, ECOL RES COMM B STOC, V4, P1
- [8] Rae B. B., 1965, Journal of Zoology London, V146, P114
- [9] SMITH GJD, 1971, THESIS U GUELPH
- [10] TILLANDER M, 1970, FIRMP70E67 FAO UN TE