TBD
Mário C. Matos
Instituto de Matematica, Universidade Estadual de Campinas
TBD
mathscidoc:1701.332404
A. Marchaud
Marseille
TBD
mathscidoc:1701.33749
Orin Chein
Temple University, Philadelphia, Penn., USA
TBD
mathscidoc:1701.331367
Patrizia Pucci
Dipartimento di Matematica, Università di Perugia
James Serrin
Department of Mathematics, University of Minnesota
TBD
mathscidoc:1701.331776
Lawrence Gruman
U.E.R. de Mathématiques, Université de Provence
TBD
mathscidoc:1701.332431