Coombs, Gareth. “Quantifying Predation Pressure and the Protective Role of Sheltered Basking Sites for Small Snakes in South Africa”. Phyllomedusa: Journal of Herpetology, vol. 15, no. 2, Dec. 2016, pp. 155-62, https://doi.org/10.11606/issn.2316-9079.v15i2p155-162.