A generic approach to the structure of certain normal ideals Liam O'Carroll — 1996 Compositio Mathematica
Inverse and partially ordered semigroups Liam O'Carroll Séminaire Dubreil. Algèbre et théorie des nombres
Ideal as an intersection of zero-dimensional ideals and the Noether exponent. Jarnicki, Witold; O'Carroll, Liam; Winiarski, Tadeusz — 2001 Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica