@article{NSJOM_2009_39_2a_7,
     author = {I. Chajda and M. Kola\v{r}{\'\i}k},
     title = {Interval basic

 algebras},
     journal = {Novi Sad Journal of Mathematics},
     pages = {71-78},
     publisher = {mathdoc},
     volume = {39},
     number = {2},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2009_39_2a_7/}
}