@article {Ressel1989_418,
	title = {Parasites and showy males: malarial infection and color variation in fence lizards},
	journal = {Oecologia},
	volume = {78},
	year = {1989},
	pages = {158{\textendash}164},
	author = {Ressel, Stephen and Schall, J. J.}
}
@article {Schall1991_453,
	title = {Toxic plant compounds and the diet of the predominantly herbivorous whiptail lizard, Cnemidophorus arubensis},
	journal = {Copeia},
	year = {1991},
	pages = {111-119},
	author = {Schall, J. J. and Ressel, Stephen}
}
