1. CompuMAINE Laboratory; Department of Mathematics & Statistics; University of Maine; Orono ME 04469 USA
2. Laboratory of Physical Foundation of Strength; Institute of Continuous Media Mechanics UB RAS; Perm Russia
3. Spectrum Medical Group; Eastern Maine Medical Center; Bangor ME 04401 USA
4. LOMA; Universite de Bordeaux; CNRS; UMR 5798; 33405 Talence France