Author; Gremmen, N.J.M.; Van der Meijden, R.(South African Journal of Antarctic ResearchSouth African Journal of Antarctic Research Vol 25, No 1 and No 2, 1971)
Author; South African Journal of Antarctic Research(South African Journal of Antarctic ResearchSouth African Journal of Antarctic Research Vol 12, 1971)
Author; Cooper, J.; Avenant, N.L.; Van Wyk, J.C.P.(South African Journal of Antarctic ResearchSouth African Journal of Antarctic Research Vol 24, No 1 and No 2, 1971)