by HSUN LEE, DWIGHT, A. E, MATYKIEWICZ, J. L, KIMBALL, C. W, DUNLAP, B. D
Published in Physics letters. A (04.09.1989)

by Vaishnava, PP, Kimball, CW, Matykiewicz, JL, Fradin, FY, Shenoy, GK, Montano, PA
Published in Physical review. B, Condensed matter (01.10.1986)

by Kimball, C.W., Matykiewicz, J.L., Giapintzakis, J., Dwight, A.E., Brodsky, M.B., Slaski, M., Dunlap, B.D., Fradin, F.Y.
Published in Physica B + C (01.12.1987)