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161 |
In vitro fertilization and embryo transfer in pretoria, South Africa Enthalten in Journal of assisted reproduction and genetics Bd. 2, Nr. 1, date:3.1985: 55-56
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162 |
Numerical Solution of Partial Differential Equations: Theory, Tools and Case Studies Basel : Birkhäuser Basel, 1983
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163 |
Limnological studies on the Pretoria Salt Pan, a hypersaline maar lake Enthalten in Hydrobiologia Bd. 99, Nr. 1, date:2.1983: 61-73
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164 |
P. C. Luthuli, The Philosophical Foundations of Black Education in South Africa. Butterworths, Durban-Pretoria 1981. Enthalten in Vierteljahrsschrift für wissenschaftliche Pädagogik Bd. 58, 1982, Nr. 3: 378-380
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165 |
Reproduction and postnatal development in the vlei rat, Otomys irroratus, on the van Riebeeck Nature Reserve, Pretoria Enthalten in Mammalia Bd. 45, 1981, Nr. 1: 99-116
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166 |
Mathematical Modelling in Biology and Ecology Berlin, Heidelberg : Springer Berlin Heidelberg, 1980
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167 |
Hail frequency in the Pretoria — Witwatersrand area during 1962 to 1972 Enthalten in Pure and applied geophysics Bd. 112, Nr. 5, date:9.1974: 765-776
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168 |
The influence of yearly weather variations on smoke and sulphur dioxide pollution in Pretoria Enthalten in Theoretical and applied climatology Bd. 20, Nr. 1, date:3.1972: 49-78
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169 |
Evidence for an Impact Origin of the Pretoria Salt Pan, South Africa Enthalten in Nature / Physical science Bd. 229, Nr. 7, date:2.1971: 211-212
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170 |
An imbedding theorem for parameter-invariant higher order problems in the calculus of variations Enthalten in Annali di matematica pura ed applicata Bd. 77, Nr. 1, date:12.1967: 377-394
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