APA (7th ed.) Citation

Kauffman, R. M., Read, T. T., & Zettl, A. (1977). The deficiency index problem for powers of ordinary differential expressions. Springer.

Chicago Style (17th ed.) Citation

Kauffman, Robert M., Thomas T. Read, and Anton Zettl. The Deficiency Index Problem for Powers of Ordinary Differential Expressions. Berlin: Springer, 1977.

MLA (9th ed.) Citation

Kauffman, Robert M., et al. The Deficiency Index Problem for Powers of Ordinary Differential Expressions. Springer, 1977.