Nichtlineare Differentialgleichungen höherer Ordnung
By: [von] R.  Reissig, G. Sansone, R. Conti.
Contributors: Sansone, Giovanni.; Conti, R.
Series: Monografie matematiche -- 16.
Publisher: Edizioni Cremonese
Published: 1969
Place of publication: Roma
Language: ger