Systems of linear partial differential equations and deformation of pseudogroup structures - Kumpera, Antonio; Spencer, Donald Clayton, 1912-.; Universite de Montreal. Department de Mathemat (Montreal : Les Presses de l'Universite de Montreal, 1974)
At head of title: Departement de mathematiques, Universite de Montreal.
Bibliography: p. 99-100.
Keywords: Pseudogroup structures, Deformation of; Differential equations, Partial