TY - BOOK AU - Stevens,K.W.H. TI - Magnetic ions in crystals SN - 0691026939 (alk. paper) AV - QC754.2.M333 S74 1997 PY - 1997/// CY - Princeton, NJ PB - Princeton University Press KW - Magnetic ions KW - Crystal field theory KW - Hamiltonian systems N1 - Includes bibliographical references and index ER -