1. Bester MN, Roux J-P (1986) Summer presence of leopard seals Hydrurga leptonyx at the Courbet Peninsula, Iles Kerguelen. S Afr J Antarct Res 16:29–32
2. Bester MN, Erickson AW, Ferguson JWH (1995) Seasonal change in the distribution and density of seals in the pack ice off Princess Martha Coast, Antarctica. Antarct Sci 7:357–364
3. Bester MN, Hofmeyr GJG, Kirkman SP, Chauke LF, de Bruyn PJN, Ferreira SM, Makhado AB, Maswime TAM, McIntyre T, Mulaudzi TW, Munyai FM, Pistorius PA, Radzilani PM, Ramunasi AJ, Tshithabane NH, Wilkinson IS (2006) The leopard seal at Marion Island, vagrant or seasonal transient? S Afr J Wildl Res 36:195–198
4. Gwynn AM (1953) The status of leopard seals at Heard Island and Macquarie Island, 1948–1950. ANARE Interim Rep 3:1–33
5. Jessopp MJ, Forcada J, Reid K, Trathan PN, Murphy EJ (2004) Winter dispersal of leopard seals (Hydrurga leptonyx): environmental factors influencing demographics and seasonal abundance. J Zool Lond 263:251–258