@ARTICLE {,
title = {Kvadratické rovnice a nerovnice},
author = {DoboŇ°, Jozef},
journal = {Obzory matematiky, fyziky a informatiky},
year = {2002},
volume = {31},
number = {4},
pages = {10--18},
issn = {1335-4981},
abstract = {Most of the quadratic equations and inequalities you will encounter in problem books can be solved by elementary methods.},
}