The exponent of class groups on congruence function fields Manchar Madan; Daniel Madden — 1977 Acta Arithmetica
The group of automorphisms of algebraic function fields. Robert C. Valentini; Daniel J. Madden — 1983 Journal für die reine und angewandte Mathematik
A Note on the Normality of Unramified, Abelian Extensions of Quadratic Extensions. Daniel J. Madden; William Yslas Velez Manuscripta mathematica
Note on class groups of algebraic function fields. Manohar L. Madan; Daniel J. Madden — 1977 Journal für die reine und angewandte Mathematik