MAGNETIC PROPERTIES II : ENDOR OF UNDOPED CIS-(CH)x L.R. Dalton, H. Thomann, H. Kim, Y. Tomkiewicz, N.S. Shiren and T.C. Clarke J. Phys. Colloques, 44 C3 (1983) C3-229-C3-232 DOI: 10.1051/jphyscol:1983345