Howell, S. M., Fritz, J. 1997. Translating good ideas into a working environmental enrichment. The Newsletter 8(3), 4-5.

Brief but very useful guidelines of how an enrichment program can most effectively be developed and implemented. Care and research staff ideas are well-thought out prior to use of any new devices, and all staff participate in the provision of environmental enrichment to the chimpanzee in our care.