TY - BOOK AU - Stevens,K.W.H. ED - Princeton University Press. TI - Magnetic ions in crystals SN - 0691026920 AV - QC754.2.M333 S74 1997 PY - 1997/// CY - New Jersey PB - Princeton University KW - Magnetic ions KW - Crystal field theory KW - Hamiltonian systems N1 - Includes bibliographical references and index ER -