1. Baum, L. E., Petrie, T., Soules, G., & Weiss, N. (1970). A maximization technique occurring in the statistical analysis of probability functions of Markov chains. The Annals of Mathematical Statistics, 41(1), 164–171.
2. Bluemel, J., Korte, S., Schenck, E., & Weinbauer, G. (2015). The nonhuman primate in nonclinical drug development and safety assessment. Academic Press.
3. Breed, M., & Moore, J. (2010). Encyclopedia of animal behavior. Academic Press.
4. Brown, C., & Riede, T. (2017). Comparative bioacoustics: An overview. Bentham Science Publishers.
5. Clemins, P. J. (2005). Automatic classification of animal vocalizations. Marquette University.