Computer perception of topological symmetry via canonical numbering of atoms.

Milan Randic Gregory M. Brissey Charles L. Wilkins Computer perception of topological symmetry via canonical numbering of atoms. 52-59 1981 21 Journal of Chemical Information and Computer Sciences 1 http://pubs.acs.org/cgi-bin/archive.cgi/jcisd8/1981/21/i01/f-pdf/f_ci00029a011.pdf db/journals/jcisd/jcisd21.html#RandicBW81