1. Vaughn, S. K., in Bio-Organic Chemistry Quart. Rep., UCRL–8961, 44 (Sept. 1959).
2. Vaughn, S. K., in Bio-Organic Chemistry Quart. Rep., UCRL–9041, 24 (Dec. 1959).
3. Himes, S. V., (née Vaughn) in Bio-Organic Chemistry Quart. Rep., UCRL–9208 7, (March 1960).
4. Himes, S. V., in Bio-Organic Chemistry Quart. Rep., UCRL–9772, 1, (June 1961).
5. Calvin, M., and Vaughn, S. K., in Proc. First Space Sci. Symp., Nice, France, 1960, 1171 (North Holland Publ. Co., Amsterdam, 1960).