1. MOX - Modeling and Scientific Computing, Dipartimento di Matematica; Politecnico di Milano; P.za Leonardo da Vinci 32 I-20133 Milano Italy
2. SISSA MathLab; International School for Advanced Studies; via Bonomea 265 I-34136 Trieste Italy
3. CMCS - Modelling and Scientific Computing; Ecole Polytechnique Fédérale de Lausanne; Station 8 CH-1015 Lausanne Switzerland