links
Facolta di Scienze Matematiche Fisiche e Naturali
, Universita degli studi del Piemonte Orientale, Alessandria
Insitut Camille Jordan
, Universite Claude Bernard Lyon 1
Institut für Mathematik
, Universität Würzburg
Erwin Schrödinger International Institute for Mathematical Physics
(ESI), Vienna
Austro-Ukrainian Institute for Science and Technology
, c/o ITP, Vienna University of Technology
