A note on representation of cyclotomic fields Juraj Kostra — 1996 Acta Mathematica et Informatica Universitatis Ostraviensis
Remark on the minimum discriminant of normal fields Juraj Kostra — 1989 Czechoslovak Mathematical Journal
On integral normal bases over intermediary fields Juraj Kostra — 1989 Czechoslovak Mathematical Journal
Correction to my paper: On integral normal bases over intermediary fields Juraj Kostra — 1993 Czechoslovak Mathematical Journal
The fields of degree seven over rationals with a normal basis generated by a unit Antonín Dvořák; David Jedelský; Juraj Kostra — 1999 Mathematica Slovaca