R. Bols

Age factors in sex differences in open-field activity of rats

F. P. Valle, R. Bols, Fred P. Valle, 1976 .

Runway behavior of Siamese fighting fish,Betta splendens, for aggressive display and food reinforcement

J. A. Hogan, R. Bols, 1979 .

Display reinforcement in the Siamese fighting fish, Betta splendens: aggressive motivation or curiosity?

R. Bols, 1977, Journal of comparative and physiological psychology.

Priming of aggressive motivation in Betta splendens

J. A. Hogan, R. Bols, 1980, Animal Behaviour.

Gerbils reared by rats: effects on adult open-field and ventral marking activity.

R. Wong, R. Bols, 1973, Behavioral biology.