MacKenzie, Darryl I., Larissa Lynn Bailey, and James D. Nichols. "Investigating Species Co-occurrence Patterns When Species are Detected Imperfectly." Journal of Animal Ecology 73, no. 3 (2004): 546-555.

Farnsworth, George L., Kenneth H. Pollock, James D. Nichols, Theodore R. Simons, James E. Hines, and John R. Sauer. "A Removal Model for Estimating Detection Probabilities from Point-Count Surveys." Auk 119, no. 2 (2002): 414-425.