Authors: Watkins, WA Daher, MA DiMarzio, NA Samuels, A Wartzok, D Fristrup, KM Gannon, DP Howey, PW Maiefski, RR Spradlin, TR

Citation: Wa. Watkins et al., Sperm whale surface activity from tracking by radio and satellite tags, MAR MAMM SC, 15(4), 1999, pp. 1158-1180