Verwysings
- Acocks , J.P.H. 1953 . Veld types of South Africa , Mem. Bot. Surv. S. Afr. No. 28
- Cottam , G. and Curtis , J.T. 1949 . A method for making rapid surveys of woodlands by means of pairs of randomly selected individuals . Ecology , 30 : 101 – 104 .
- Cottam , G. and Curtis , J.T. 1956 . The use of distance measures in phytosociological sampling . Ecology , 37 : 451 – 460 .
- Curtis , J.T. and McIntosh , R.P. 1951 . An upland forest continuum in the prairie‐forest border region of Wisconsin . Ecology , 32 : 476 – 496 .
- Goff , F.G. and Cottam , G. 1967 . Gradient analysis: the use of species and synthetic indices . Ecology , 48 : 793 – 806 .
- Grunow , J. Q. 1965 . Objective classification of plant communities: a synecological study in the sour‐mixed bushveld of Transvaal , Univ. Pretoria . Unpublished D.Sc. (Agric.) thesis,
- Havenga , C.M. 1967 . Ongepubliseerde gegewens , Pretoria : Dept. Landbou‐tegniese Dienste . P/s 116,
- Loxton , R.F. 1966 . A simplified soil‐survey procedure for farm planning , Sci. Bull. No. 383 Dept. Agric. Techn. Serv. Pretoria : Govt. Print. .
- Van Eeden , F.J. 1966 . Metodes om die digtheid van borne en struike in bosveld te bepaal , Univ. Pretoria . Ongepubliseerde M.Sc. (Agric.)‐verhandeling,