Kater, L. J. M., S.  Kante, and Arnoud  Budelman. 1992. ?Karité (Vitellaria Paradoxa) And Néré (Parkia Biglobosa) Associated With Crops In South Mali?. Agroforestry Systems 18 (2): 89-105. doi:10.1007/BF00115407. https://doi.org/10.1007/BF00115407.