R. A. Kycia, J. Chwastowski, R. Staszewski and J. Turnau. (2018). GenEx: A Simple Generator Structure for Exclusive Processes in High Energy Collisions.
            <i>Communications in Computational Physics</i>. <i>24</i> (3).
            860-884.
         doi:10.4208/cicp.OA-2017-0105