Citations: Anonym 1994: [Opler, P. A.] News of the Lepidopterists' Society., Lawrence, B15 11847, pp. 1-2, Portr. (Präsident der Gesellschaft)
Anonym 2018: Two of our own named fellows of the Entomological Society of America. News of the Lepidopterists' Society, Los Angeles 60 (3), S. 140-141, 11 847, pp. 141, Portr.
Buckner-Opler, E. 2023: Obituary Paul Alexander Opler (1938-2023), with list of publications Denver Museum of Nature & Science Report., Denver 2023 (21), S. 13-32, 12 558
Wagner, D. L. 2012: Paul A. Opler: Our society's newest honorary life member. News of the Lepidopterists' Society, Los Angeles 54 (1), S. 16-17, B15:11847