@ARTICLE {, title = {Integrálne súčty}, author = {Doboš, Jozef}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2009}, volume = {38}, number = {1}, pages = {13--20}, issn = {1335-4981}, abstract = {The aim of this paper is to improve teaching of the Riemann integral.}, }