TY - BOOK AU - Devreese J T Ed. AU - Collins T C Ed. AU - Kunz A B Ed. ED - Nato advanced study institute on elementary excitations in colids, molecules and atoms (1973 : Antwrep) TI - Proceeding on Elementary excitations in solids, molecules and atoms T2 - NATO Advanced Study Institutes Series; 2 U1 - C9B1p1,N73, L4, A PY - 1974/// CY - London PB - Plenum Press KW - Moleclar physics ER -