Schwarzkopf, Lin, and Brooks, Ronald J. (1987) Nest-site selection and offspring sex ratio in painted turtles, Chrysemys picta. Copeia, 1987 (1). pp. 53-61.

Schwarzkopf, Lin, and Brooks, Ronald J. (1986) Annual variations in reproductive characteristics of painted turtles (Chrysemys picta). Canadian Journal of Zoology, 64 (5). pp. 1148-1151.

Brooks, Ronald J., Donald, Melody A., and Schwarzkopf, Lin (1985) Failure of strange females to cause pregnancy block in collared lemmings, Dicrostonyx groenlandicus. Behavioral and Neural Biology, 44 (3). pp. 485-491.

Schwarzkopf, Lin, and Brooks, Ronald J. (1985) Application of operative environmental temperatures to analysis of basking behavior in Chrysemys picta. Herpetologica, 41 (2). pp. 206-212.

Schwarzkopf, Lin, and Brooks, Ronald J. (1985) Sex determination in northern painted turtles: effect of incubation at constant and fluctuating temperatures. Canadian Journal of Zoology, 63 (11). pp. 2543-2547.

Brooks, Ronald J., and Schwarzkopf, Lin (1983) Factors affecting incidence of infanticide and discrimination of related and unrelated neonates in male Mus musculus. Behavioral and Neural Biology, 37 (1). pp. 149-161.