Economic effects of fluctuations in catches and population levels, upon a population of Alaska king crab. - Philip L. Katz; James W. Balsiger; Robert H. Schappelle; Thomas R. Spinker (WSC, 1977)

Model-based morphology: the opening spectrum. - Robert M. Haralick; Philip L. Katz (CVGIP Graph. Model. Image Process., 1995)

Optimal single-stage restoration of subtractive noise corrupted images by a morphological closing. - Larry R. Rystrom; Robert M. Haralick; Philip L. Katz (J. Electronic Imaging, 1995)