Carroll, R. W., & Showalter, R. E. (1976). Singular and degenerate cauchy problem.
Chicago Edition CitationCarroll, R W., i R E. Showalter. Singular and Degenerate Cauchy Problem. Academic Press, New York, 1976.
Cita MLACarroll, R W., i R E. Showalter. Singular and Degenerate Cauchy Problem. 1976.
Atenció: Aquestes cites poden no estar 100% correctes.