Topological structural information in the CAS file: statistical occurrences of DARC concentric fragments. 1. Basic carbon substructures. - Gerard Carrier; Annick Panaye; Jacques-Emile Dubois (J. Chem. Inf. Comput. Sci., 1990)

DARC topological descriptors for pattern recognition in molecular database management systems and design. - Jacques-Emile Dubois; Gerard Carrier; Annick Panaye (J. Chem. Inf. Comput. Sci., 1991)