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Resetarits, William J. (June 1995). "Competitive Asymmetry and Coexistence in Size-Structured Populations of Brook Trout and Spring Salamanders". Oikos. 73 (2): 188–198. doi:10.2307/3545907. JSTOR3545907.
Bruce, Richard C. (1979). "Evolution of Paedomorphosis in Salamanders of the Genus Gyrinophilus". Evolution. 33 (3): 998–10000. doi:10.2307/2407662. JSTOR2407662. PMID28568439.
Bruce, Richard C. (1972). "Variation in the Life Cycle of the Salamander Gyrinophilus porphyriticus". Herpetologica. 28 (3): 230–245. ISSN0018-0831. JSTOR3890627.