| Hodgden, R., 2001. Using daily keeper questionnaires to predict estrus in rhinos: pp. 74-75
| In: Schwammer, H.M. et al. Recent research on elephants and rhinos: Abstracts of the International Elephant and Rhino Research Symposium, June 7-11, 2001. Vienna, Zoologischer Garten: pp. 1-80 |
|
|
| Hodgden, R., 1991. Short-term separation and stress of mother and daughter southern white rhinoceroses at the North Carolina Zoological Park (abstract). Applied Animal Behavior Science 29: 513
|
|
|