Delgado, M. M., B. S. G. Han, and M. J. Bain. 2021. Domestic cats (Feliscatus) prefer freely available food over food that requires effort. Animal Cognition.
Miklosi, A., R. Polgárdi, J. Topál, and V. Csányi. 1998. Use of experimenter-given cues in dogs. Animal Cognition 1:113-121. https://doi.org/10.1007/s100710050016
Miklosi, A., P. Pongracz, G. Lakatos, J. Topál, and V. Csányi. 2005. A comparative study of the use of visual communicative signals in interactions between dogs (Canisfamiliaris) and humans and cats (Feliscatus) and humans. Journal of comparative psychology (Washington, D.C. : 1983) 119:179-186. https://doi.org/10.1037/0735-7036.119.2.179