Journal articles
2007
- . (2007). New oxypregnane glycosides from appetite suppressant herbal supplement Hoodia gordonii. Steroids, 72(6-7), 524 - 534. http://doi.org/10.1016/j.steroids.2007.03.003 (Original work published 6/2007AD)
2014
- . (2014). New phytochemicals from the corms of medicinally important South African Hypoxis species. Phytochemistry Letters, 10. http://doi.org/10.1016/j.phytol.2014.09.014 (Original work published 12/2014AD)
1978
- . (1978). New sesquiterpenes and acetylenes from Athanasia and Pentzia species. Phytochemistry, 17(9). http://doi.org/10.1016/S0031-9422(00)94650-8 (Original work published 1/1978AD)
2013
- . (2013). New triterpenoid estersaponins from the root barks of Pittosporum verticillatum subsp. verticillatum and evaluation of cytotoxicities. Fitoterapia, 91. http://doi.org/10.1016/j.fitote.2013.09.002 (Original work published 12/2013AD)
1979
- . (1979). New α-pyrones from Iboza riparia. Phytochemistry, 18(7). http://doi.org/10.1016/0031-9422(79)80138-7 (Original work published 1/1979AD)
2011
- . (2011). Nine new tropane alkaloids from Datura stramonium L. identified by GC/MS. Fitoterapia, 82(2). http://doi.org/10.1016/j.fitote.2010.09.010 (Original work published 3/2011AD)
2010
- . (2010). Nitrogen supply and abiotic stress influence canavanine synthesis and the productivity of in vitro regenerated Sutherlandia frutescens microshoots. Journal Of Plant Physiology, 167(17), 1521 - 1524. http://doi.org/10.1016/j.jplph.2010.05.018 (Original work published 11/2010AD)
2008
- . (2008). Non-cannabinoid constituents from a high potency Cannabis sativa variety. Phytochemistry, 69(14). http://doi.org/10.1016/j.phytochem.2008.07.010 (Original work published 10/2008AD)
- . (2008). Novel Xanthones from Securidaca longepedunculata with Activity Against Erectile Dysfunction. Journal Of Ethnopharmacology, 119(3). http://doi.org/10.1016/j.jep.2008.06.018 (Original work published 10/2008AD)
2006
- . (2006). Notes on the Lamiaceae: A new Tetradenia and a new Thorncroftia from South Africa. South African Journal Of Botany, 72(2), 202 - 204. http://doi.org/10.1016/j.sajb.2005.07.009 (Original work published 5/2006AD)
2002
- . (2002). Novel Acylated Triterpene Glycosides from Muraltia heisteria. Journal Of Natural Products, 65(2). http://doi.org/10.1021/np010381 (Original work published 02/2002AD)
1988
- . (1988). Novel cyanomaclurin analogue from Peltophorum africanum. Phytochemistry, 27(11). http://doi.org/10.1016/0031-9422(88)80808-2 (Original work published 1/1988AD)
1989
- . (1989). Observations on plant usage in Xhosa and Zulu medicine. Bothalia, 19 (2), 225 - 235. http://doi.org/doi: 10.4102/abc.v19i2.965 (Original work published 1989)
- . (1989). Observations on the use of some known and suspected toxic Liliiflorae in Zulu and Xhosa medicine. South African Medical Journal, 75(2), 62-69. Retrieved from http://archive.samj.org.za/1989%20VOL%20LXXV%20Jan-Jun/Articles/01%20January/2.8%20OBSERVATIONS%20ON%20THE%20USE%20OF%20SOME%20KNOWN%20AND%20SUSPECTED%20TOXIC%20LILIIFLORAE%20IN%20ZULU%20AND%20XHOSA%20MEDIC.pdf (Original work published 1989)
2012
- . (2012). Old plants newly discovered: Cassia sieberiana D.C. and Cassia abbreviata Oliv. Oliv. root extracts inhibit in vitro HIV-1c replication in peripheral blood mononuclear cells (PBMCs) by different modes of action. Journal Of Ethnopharmacology, 141(1). http://doi.org/10.1016/j.jep.2012.01.044 (Original work published 5/2012AD)


