@book{Dobos:2006,
title = {GNUPLOT. Rozšírený úvod},
author = {Jozef Doboš},
url = {http://people.tuke.sk/jan.busa/kega/gnuplot.html},
isbn = {80-8073-636-7},
year = {2006},
date = {2006-01-01},
publisher = {FEI TU},
address = {Košice, Slovak Republic},
keywords = {teaching mathematics}
}

@book{Dobos:2003b,
title = {Rovnice a nerovnice},
author = {Jozef Doboš},
url = {http://web.science.upjs.sk/jozefdobos/wp-content/uploads/2012/02/2003b.pdf},
isbn = {0-86516-558-0},
year = {2003},
date = {2003-01-01},
publisher = {Bolchazy-Carducci Publishers, Inc.},
address = {Wauconda, Illinois, USA},
keywords = {teaching mathematics}
}

@book{kniha1999,
title = {Matematické etudy},
author = {Jozef Doboš},
url = {http://web.science.upjs.sk/jozefdobos/wp-content/uploads/2012/03/etudy.pdf},
isbn = {80-85668-82-3},
year = {1999},
date = {1999-03-01},
publisher = {MANACON},
address = {Prešov},
keywords = {teaching mathematics}
}