Alibhai, S.K.; Jewell, Z.C.; Law, P.R. 2008. Identifying white rhino (Ceratotherium simum) by a footprint identification technique, at the individual and species levels. Endangered Species Research 4: 205-218, figs. 1-5, tables 1-4.
Identifying white rhino (Ceratotherium simum) by a footprint identification technique, at the individual and species levels