Elschner, J. (1985). Singular ordinary differential operators and pseudodifferential equations. springer-verlag.
Chicago Edition CitationElschner, Johannes. Singular Ordinary Differential Operators and Pseudodifferential Equations. springer-verlag, 1985.
MLA Edition CitationElschner, Johannes. Singular Ordinary Differential Operators and Pseudodifferential Equations. springer-verlag, 1985.
Warning: These citations may not always be 100% accurate.