1984 Walnut Scale-Development of an Effective Monitoring Method and Phenology Model Coviello, Richard L., Mark Freeman, Richard E. Rice, William H. Krueger, Phil Phillips. 1984
1993 Walnut Improvement Program - 1993 McGranahan, Gale, Chuck Leslie, Herb Phillips, Sylvaine Coulibaly, Hatice Dumanoglu. 1993.
