J. S. B. Ahl (1991). "Factors affecting contributions of the tadpole shrimp, Lepidurus packardi, to its oversummering egg reserves". Hydrobiologia. 212 (1): 137–143. doi:10.1007/BF00025995. S2CID26307328.
J. S. B. Ahl (1991). "Factors affecting contributions of the tadpole shrimp, Lepidurus packardi, to its oversummering egg reserves". Hydrobiologia. 212 (1): 137–143. doi:10.1007/BF00025995. S2CID26307328.