D. Hünich, A. Knüpfer, and J. Gracia. Proceedings of the International Conference on Computational Science, ICCS 2015, Computational Science at the Gates of Nature, Reykjav\'ık, Iceland, 1-3 June, 2015, 2014, page 1383--1392. (2015)
J. Gracia, M. Sethi, N. Struckmann, and R. Keller. Proceedings of International Conference on Advanced Communications and Computation (INFOCOMP 2015), page 26--29. IARIA, (2015)