TY - BOOK AU - Niclaides, Cleanthes A. AU - Beck, Donald R. TI - Exited states in quantum chemistry T2 - NATO Advannced Study Institutes Series SN - 9789027709615 U1 - 541.28 NAT PY - 1979/// CY - Dordrecht PB - D. Reidel Publishing Company KW - Quantum chemistry KW - Excitation energies KW - excited state chemistry N1 - Includes index; Includes bibliographical references ER -