The number of inequivalent irreducible Goppa codes. - Patrick Fitzpatrick; John A. Ryan (Electron. Notes Discret. Math., 2001)

Quasicyclic irreducible Goppa codes. - John A. Ryan; Patrick Fitzpatrick (ISIT, 2004)

Enumeration of inequivalent irreducible Goppa codes. - John A. Ryan; Patrick Fitzpatrick (Discret. Appl. Math., 2006)

Counting Extended Irreducible Binary Quartic Goppa Codes of Length 2n+1. - John A. Ryan (IEEE Trans. Inf. Theory, 2015)

Counting extended irreducible Goppa codes. - Kondwani Magamba; John A. Ryan (Appl. Algebra Eng. Commun. Comput., 2019)

Enumeration of irreducible and extended irreducible Goppa codes. - Kondwani Magamba; John A. Ryan (CoRR, 2019)