Intelligent Computer Mathematics : 11th International Conference, AISC 2012, 19th Symposium, Calculemus 2012, 5th International Workshop, DML 2012, 11th International Conference, MKM 2012, Systems and Projects, Held as Part of CICM 2012, Bremen, Germany, July 8-13, 2012, Proceedings - Johan Jeuring, John A. Campbell, Jacques Carette, Gabriel Reis, Petr Sojka, Makarius Wenzel, Volker Sorge ((Lecture Notes in Computer Science))