1996-1996
Campinas, SP, Brazil: At the 1996 WORKSHOP on Orthogonal Functions, Moment Theory, Padé Appro-ximants and Applications  Campinas, SP, Brazil: At the 1996 WORKSHOP on Orthogonal Functions, Moment Theory, Padé Appro-ximants and Applications 
Campinas, SP, Brazil: At the 1996 WORKSHOP on Orthogonal Functions, Moment Theory, Padé Appro-ximants and Applications  Campinas, SP, Brazil: At the 1996 WORKSHOP on Orthogonal Functions, Moment Theory, Padé Appro-ximants and Applications