1. Laboratory for Molecular Modeling, National Institute of Chemistry, SI-1001 Ljubljana, Slovenia
2. Faculty of Mathematics and Physics, University of Ljubljana, SI-1001 Ljubljana, Slovenia
3. Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
4. J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, 182 23 Prague 8, Czech Republic
5. MELAMIN d.d., SI-1330 Kočevje, Slovenia