Reference Base Search Results Search results for References by shepherdson, d.j. back to search page Sort order: ------------------- Date ASC Author normal    Swaisgood, R.R.; Shepherdson, D.J., 2005. Scientific approaches to enrichment and stereotypies in zoo animals: what's been done and where should we go next. Zoo Biology 24 (6): 499-518 File available   details back to search page Sort order: ------------------- Date ASC Author normal