Bleich, V. C., Chun, C. S. Y., Anthers, R. W., Evans, T. E. and Fischer, J. K. (2001) “VISIBILITY BIAS AND DEVELOPMENT OF A SIGHTABILITY MODEL FOR TULE ELK”, Alces, 37(2), pp. 315–327. Available at: https://www.alcesjournal.org/index.php/alces/article/view/585 (Accessed: 26 April 2026).