David Feldman

Omega-conotoxin: direct and persistent blockade of specific types of calcium channels in neurons but not muscle.

R. Tsien, D. Yoshikami, A. Fox, 1987, Proceedings of the National Academy of Sciences of the United States of America.

Different types of calcium channels.

R. Tsien, A. Fox, E. Mccleskey, 1986, The Journal of experimental biology.