共 24 条
[12]
KRUMBEIN WC, 1968, RECENT MARINE SEDIME, P558
[17]
SPRULES WM, 1947, U TORONTO STUDIES BI, V56
[18]
Ulfslrand S., 1969, Entomologisk Tidskrift, V90, P145
[19]
ULFSTRAND S, 1974, Entomologica Scandinavica, V5, P115