Here’s the pawpaw publications I’m aware of that list R.N. Peterson as an author. Were you referring to one of these?
Peterson, R. N., J. P. Cherry, and J. G. Simmons. “Composition of pawpaw (Asimina triloba) fruit [Flavor and aroma, eastern United States].” Annual Report Northern Nut Growers Association (1982).
Peterson, R. N. “Research on the pawpaw (Asimina triloba) at the University of Maryland.” Annual report of the Northern Nut Growers Association (USA) (1986).
Peterson, R. Neal. “Pawpaw (Asimina).” Acta Horticulturae 290 (1990): 567-600.
Huang, Hongwen, Desmond R. Layne, and R. Neal Peterson. “Using isozyme polymorphisms for identifying and assessing genetic variation in cultivated pawpaw [Asimina triloba (L.) Dunal].” Journal of the American Society for Horticultural Science 122.4 (1997): 504-511.
Pomper, Kirk W., Desmond R. Layne, and R. Neal Peterson. “The pawpaw regional variety trial.” Perspectives on new crops and new uses. ASHS Press, Alex.,Va (1999): 353-357.
Pomper, Kirk W., Desmond R. Layne, and R. Neal Peterson. “THE PAWPAW Taxonomy.” (1999).
Johnson, H. A., et al. “Evaluation of the biological activity of various North American paw paw (Asimina triloba) germplasms.” J Nat Prod 62 (1999).
Pomper, Kirk W., et al. “The pawpaw regional variety trial: background and early data.” HortTechnology 13.3 (2003): 412-417.
Peterson, R. Neal. “Pawpaw variety development: a history and future prospects.” HortTechnology 13.3 (2003): 449-454.
Crabtree, Sheri B., et al. “(109) The Kentucky State University Pawpaw Regional Variety Trial: 1998–2005 Overview.” HortScience 41.4 (2006): 1039-1040.
Pomper, Kirk W., et al. “The Kentucky Pawpaw Regional Variety Trail.” JOURNAL-AMERICAN POMOLOGICAL SOCIETY 62.2 (2008): 58.
Pomper, Kirk W., et al. “Flowering and fruiting characteristics of eight pawpaw [Asimina triloba (L.) Dunal] selections in Kentucky.” Journal of the American Pomological Society 62.3 (2008): 89-97.
Peterson, R. Neal, and Alan R. Biggs. “‘Wansevwan’, an Improved Pawpaw Cultivar with Mild Flavor and a Tendency for Single Fruit Clusters.” Agricultural Research & Technology: Open Access Journal 3.2 (2017): 44-46.