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Multidimensional Inverse Properties for Differential Equations. - Berlin: Springer-Verlag, 1970. - [1 v.]: - Lecture Notes in Mathematics; 167 . - Lecture notes in mathematics (Springer-Verlag); 167. .
Multidimensional Inverse Properties for Differential Equations. - Berlin: Springer-Verlag, 1970. - [1 v.]: - Lecture Notes in Mathematics; 167 . - Lecture notes in mathematics (Springer-Verlag); 167. .