Lyons, J., Young, R.J. & Daeg, J. M. (1997). The effects of physical characteristics of the environment and feeding regime on the behavior of captive felids. Zoo Biology. 16: 71-83
Lyons, J., Young, R.J. & Daeg, J. M. (1997). The effects of physical characteristics of the environment and feeding regime on the behavior of captive felids. Zoo Biology. 16: 71-83