TY - BOOK AU - Graovac,Ante AU - Gutman,Ivan,1947- AU - Trinajstic,Nenad TI - Topological approach to the chemistry of conjugated molecules SN - 0387084312 PY - 1977/// CY - Berlin PB - Springer-Verlag KW - Molecular theory KW - Mathematical models KW - Graph theory N1 - Includes index; Bibliography: p. 115-120 ER -