共 17 条
- [1] BOCK KR, 1974, DESCRIPTIONS PLANT V
- [2] DAMSTEEGT VD, 1980, PROT ECOL, V2, P231
- [3] ENGELBRECHT GC, 1973, THESIS U ORANGE FREE
- [4] FULLER C, 1901, 1ST GOV ENT NAT REP, P17
- [5] GORTER GJM, 1953, UNION S AFR SCI B, V341
- [6] MCCLEAN APD, 1947, UNION S AFR SCI B, V265
- [8] Rensburg G. D. J. Van, 1977, Phytophylactica, V9, P115
- [10] Ruppel RF, 1965, MICHIGAN STATE U MUS, V2, P385