L. J. Petersen

Genetically improved potatoes: protection from damage by Colorado potato beetles

J. Wyman, Yvonne M. Muskopf, D. Fischhoff, 1993, Plant Molecular Biology.

Tobacco streak virus infection of tomato and some natural weed hosts in California

R. Grogan, K. Kimble, F. Cupertino, 1984 .