Kauffman, R. M. 1., Zettl, A., & Read, T. T. 1. (1964). The deficiency index problem for powers of ordinary differential expressions. Berlín: Springer.
Chicago Style CitationKauffman, Robert McKenzie 1941-, Anton Zettl, and Thomas Thorton 1943- Read. The Deficiency Index Problem for Powers of Ordinary Differential Expressions. Berlín: Springer, 1964.
MLA CitationKauffman, Robert McKenzie 1941-, Anton Zettl, and Thomas Thorton 1943- Read. The Deficiency Index Problem for Powers of Ordinary Differential Expressions. Berlín: Springer, 1964.
Warning: These citations may not always be 100% accurate.