L. A. Pirojnikoff

Dogmatism and social distance: a cross-cultural study.

L. A. Pirojnikoff, I. Hadar, A. Hadar, 1971, The Journal of social psychology.

Discrimination learning as a function of pretraining reinforcement schedules.

H. Stevenson, L. A. Pirojnikoff, 1958, Journal of experimental psychology.