Barquero González, J. P., A. Vega-Hidalgo, and J. Monge-Nájera. “Feeding Behavior of Costa Rican Velvet Worms: Food Hiding, Parental Feeding Investment and Ontogenetic Diet Shift (Onychophora: Peripatidae)”. UNED Research Journal, vol. 11, no. 2, Feb. 2019, pp. 85-88, doi:10.22458/urj.v11i2.2195.