Template:Robbrecht, 1979

• Robbrecht, E. 1979. The African genus Tricalysia A. Rich. (Rubiaceae - Coffeeae). 1. A revision of the species of subgenus Empogona. Bulletin du Jardin Botanique National de Belgique 49(3–4): 239–360. DOI: 10.2307/3668089  
  • [Date of publication: 30 December 1979]
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