S. D. Filippo.Meeting on Geometrical and Algebraic Aspects of Nonlinear Field Theory(1988 : Amalfi, Italy)：Geometrical and algebraic aspects of nonlinear field theory : proceedings of the....North-Holland,1989.
Meeting on Geometrical and Algebraic Aspects of Nonlinear Field Theory(1988 : Amalfi, Italy)：Geometrical and algebraic aspects of nonlinear field theory : proceedings of the...
