Thorsten Kleinjung, Joppe W. Bos, Arjen K. Lenstra, Dag Arne Osvik, Kazumaro Aoki, Scott Contini, Jens Franke, Emmanuel Thomé, Pascal Jermini, Michela Thiémard, Paul C. Leyland, Peter L. Montgomery, Andrey Timofeev, Heinz Stockinger. A heterogeneous computing environment to solve the 768-bit RSA challenge. Cluster Computing, 15(1):53-68, 2012. [doi]