Publications serve as the concrete art form for the scientist. It is his modus operandi. Authorship is akin to success and achievement. It cannot and should not deteriorate into a bargaining tool or commodity. Dardik
Viljoen, A.M., Van Wyk, B-E. 1999. The chemotaxonomic value of two cinnamoyl chromones aloeresins E and F in Aloe. Taxon 48: 747–754.

The structures of two new aloesin derivatives isolated from Aloe peglerae, viz.,  (aloeresin E) and  (aloeresin F) were determined by spectroscopic methods.

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