Barquero González, J. P., Cabrera Alvarado, A. A., Vallejo Cubero, S., Monge Nájera, J., & Morera Brenes, B. (2016). The geographic distribution of Costa Rican velvet worms (Onychophora: Peripatidae). Universidad de Costa Rica.

Barquero González, José Pablo, Adrián Alonso Cabrera Alvarado, Stephanie Vallejo Cubero, Julián Monge Nájera, and Bernal Morera Brenes. The Geographic Distribution of Costa Rican Velvet Worms (Onychophora: Peripatidae). Universidad de Costa Rica, 2016.

Barquero González, José Pablo, et al. The Geographic Distribution of Costa Rican Velvet Worms (Onychophora: Peripatidae). Universidad de Costa Rica, 2016.