MERRIAM, N.W.// THOMAS, K.P.// CHA, C.Y. (WESTERN RESEARCH INST., LARAMIE, WY (UNITED STATES))United States. Dept. of Energy(United States. Dept. of Energy)1991.
GRIMES, R.W.// CHA, C.Y.// SHEESLEY, D.C. (WESTERN RESEARCH INST., LARAMIE, WY (UNITED STATES))United States. Dept. of Energy(United States. Dept. of Energy)1990.
CHA, C.Y.// JOHNSON, L.A. JR.// GUFFEY, F.D. (WESTERN RESEARCH INST., LARAMIE, WY (USA))United States. Dept. of Energy(United States. Dept. of Energy)1990.
SUDDUTH,B.C.// MERRIAM,N.W.// TURNER,T.F.// VAUGHN,P.// CHA,C.Y. (WESTERN RESEARCH INST.,LARAMIE,WY(USA))United States. Dept. of Energy(United States. Dept. of Energy)1987.