Kauffman, R. M. (1977). Deficiency index problem for powers of ordinary differential expressions. Springer-Verlag.
Style de citation ChicagoKauffman, Robert M. Deficiency Index Problem for Powers of Ordinary Differential Expressions. Berlin: Springer-Verlag, 1977.
Style de citation MLAKauffman, Robert M. Deficiency Index Problem for Powers of Ordinary Differential Expressions. Springer-Verlag, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.