@article{NSJOM_1999_29_1a_1,
     author = {E. Pap and N. Ralevi\'c},
     title = {Pseudo-operations on finite 

 intervals},
     journal = {Novi Sad Journal of Mathematics},
     pages = {9-18},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1999},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1999_29_1a_1/}
}