Leonid Khachiyan Endre Boros Khaled M. Elbassioni Vladimir Gurvich Kazuhisa Makino Enumerating disjunctions and conjunctions of paths and cuts in reliability theory. 137-149 2007 155 Discrete Applied Mathematics 2 http://dx.doi.org/10.1016/j.dam.2006.04.032 db/journals/dam/dam155.html#KhachiyanBEGM07