D. Shafer

Microbes in antarctic waters of the Drake Passage: Vertical patterns of substrate uptake, productivity and biomass in January 1980

R. Hanson, D. Pope, H. K. Lowery, 1983, Polar Biology.

Degradation of dimethyl nitrosamine by Methylosinus trichosporium OB3b.

T. Yoshinari, D. Shafer, 1990, Canadian journal of microbiology.

Environmental Sensitivity of Fish Otolith Microchemistry

D. Shafer, R. Radtke, 1992 .