Doug S Butterworth , Susan J Johnston
University of Cape Town
Doug S Butterworth , Andrea Müller , Susan J Johnston
University of Cape Town
Carryn L De Moor , Doug S Butterworth
University of Cape Town
Anabela Brandão , Doug S Butterworth
MARAM, University of Cape Town
Jean Patricia Glazer , Anabela Brandão , Doug S Butterworth , Susan J Johnston
University of Cape Town
Anabela Brandão , Doug S Butterworth
University of Cape Town
Anabela Brandão , Susan J Johnston , Doug S Butterworth
University of Cape Town
Carryn L de Moor , Doug S Butterworth
University of Cape Town
Anabela Brandão , Doug S Butterworth
University of Cape Town
Doug S Butterworth
University of Cape Town
Desray Reeb , Rebecca A Rademeyer , Peter B Best , Keiko Sekiguchi
Journal of Cetacean Research and ManagementWinter 5 ( 3) 253 -260
William M L Robinson , Doug S Butterworth , Andrea Ross-Gillespie
University of Cape Town
Doug S Butterworth , M Mori ,
University of Cape Town
M Burgener , G Maharaj , Anabela Brandão , Doug S Butterworth
University of Cape Town
M Mori , Doug S Butterworth , T Kitakado ,
University of Cape Town
Ryoko Zenitani , Doug S Butterworth , Mitsuko Mori , Hidehiro Kato
University of Cape Town
Doug S Butterworth , Liam B Furman
MARAM, University of Cape Town
Doug Butterworth , Doug S Butterworth , Éva Plagányi , Éva E Plagányi
University of Cape Town
Peter B Best , Anabela Brandão , Doug S Butterworth
International Whaling Commission
Doug S Butterworth , Trevor A Branch
International Whaling Commission