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Author  |
Title | Year | Publication | Serial | Volume | Pages |
|---|---|---|---|---|---|---|
| Hoff, M.P.; Powell, D.M.; Lukas, K.E.; Maple, T.L. | Individual and social behavior of lowland gorillas in outdoor exhibits compared with indoor holding areas | 1997 | Applied Animal Behaviour Science | 2143 | 54 | 359-370 |
| Powell, D.M. | Preliminary evaluation of porcine zona pellucida (PZP) immunocontraception for behavioral effects in feral horses (Equus caballus) | 1999 | Journal of Applied Animal Welfare Science : JAAWS | 1883 | 2 | 321-335 |