Victoria, M. R. L. M. (1999). Perturbations of a class of ordinary differential expressions preserving the essential spectrum and the nullities.
Chicago Style (17th ed.) CitationVictoria, Marie Redina L. Mumpar. Perturbations of a Class of Ordinary Differential Expressions Preserving the Essential Spectrum and the Nullities. 1999.
MLA (9th ed.) CitationVictoria, Marie Redina L. Mumpar. Perturbations of a Class of Ordinary Differential Expressions Preserving the Essential Spectrum and the Nullities. 1999.
Warning: These citations may not always be 100% accurate.