Acta mathematica Universitatis Comenianae. Volume 61/1992. Number 1. /
Acta mathematica Universitatis Comenianae. Autumn 1996. Volume 65. Number 2.
Acta mathematica Universitatis Comenianae. Spring 1996. Volume 65. Number 1.
Acta mathematica Universitatis Comenianae. Vol. 62. Number 1.
Acta mathematica Universitatis Comenianae. : Autumn 1995. Volume 49. Number 2.
Acta mathematica Universitatis Comenianae. : Autumn 1994. Volume 63. Number 2. /
Acta mathematica Universitatis Comenianae. : Spring 1994. Volume 63. Number 1.
Acta mathematica Universitatis Comenianae. : Spring 1995. Volume 64. Number 1.
Acta physica Universitatis Comenianae. Volume 37. Number 1, 1996. /
Acta didactica Universitatis Comenianae - Mathematics, Issue 1, 1992. /
Acta Universitatis Mathaei Belii. Natural Sciences Series. Series MATHEMATICS. Number 2. /
Acta physica Universitatis Comenianae. Vol. 33, No 2, 1992. /
Acta Facultatis paedagogicae Universitatis Comenianae. Matematika 4. /
Acta Facultatis Pharmaceuticae Universitatis Comenianae 47/1992. /
Acta Didactica Universitatis Comenianae. Issue 14, 2014, Mathematics /
Acta Didactica Universitatis Comenianae. 2012, Issue 12, Mathematics /
Acta didactica Universitatis Comenianae. Mathematics. Issue 3, 1994. /
Acta didactica Universitatis Comenianae. Mathematics. Issue 4, 1995. /
Acta Didactica Universitatis Comenianae. Issue 5, 2005, Mathematics /
Acta Didactica Universitatis Comenianae. Issue 6, 2006, Mathematics /
Acta mathemetica Universitatis Comenianae. Volume 61/1992. Number 2. /