共 4 条
[1]
Hoffman K., 1954, Zeitschrift fuer Tierpsychologie, V11, P453
[2]
Kramer G., 1957, Ibis, V99, P196, DOI 10.1111/j.1474-919X.1957.tb01947.x
[4]
MATTHEWS GVT, 1955, J EXP BIOL, V32, P39