Sandi Klavzar Aleksander Vesel Petra Zigert Ivan Gutman Binary Coding of Kekulé Structures of Catacondensed Benzenoid Hydrocarbons. 569-575 2001 25 Computers & Chemistry 6 http://dx.doi.org/10.1016/S0097-8485(01)00068-7 db/journals/candc/candc25.html#KlavzarVZG01