1990 Media and Explant Trials Aimed at Inducing Somatic Embryos from Commercially Important Walnut Cultivars Mohammed, Aly, Charles A. Leslie, Robert G. Fjellstrom, Gale H. McGranahan. 1990.
1990 Walnut Supplemental Pollination Polito, Vito S., Steve Sibbett, Bill Olson, Laura Dollo, Bob Fjellstrom. 1990.
