Wright, J.B.; Brown, D.L. 1997. Identification of 18:3(n-3) linolenic acid, 18:3(n-6) linolenic acid and 18:2(n-6) linoleic acid in Zimbabwean browses preferred by wild black rhinoceroses (Diceros bicornis) determined by GC-MS analysis.
Animal Feed Science Technology 69: 195-199, table 1.