1. IPC/i3N, Institute for Polymers and CompositesUniversity of Minho, Azurém Campus Guimarães Portugal
2. DEP, Department of Polymer EngineeringUniversity of Minho, Azurém Campus Guimarães Portugal
3. CFUM, Centre of PhysicsUniversity of Minho, Azurém Campus Guimarães Portugal
4. DMAT, Department of MathematicsUniversity of Minho, Azurém Campus Guimarães Portugal
5. IMB, Institute of Mathematics of BordeauxUniversity of Bordeaux Talence France