Mitchell, Valone, W.A., T.J. (1990). "The Optimization Research Program: Studying Adaptations by Their Function". The Quarterly Review of Biology. 65 (1): 43–52. doi:10.1086/416584. S2CID84451535.{{cite journal}}: CS1 maint: multiple names: authors list (link)
Mitchell, Valone, W.A., T.J. (1990). "The Optimization Research Program: Studying Adaptations by Their Function". The Quarterly Review of Biology. 65 (1): 43–52. doi:10.1086/416584. S2CID84451535.{{cite journal}}: CS1 maint: multiple names: authors list (link)