@article{NSJOM_2000_30_2a_3,
     author = {M. 

 Ivanovi\'c and V. Kun\v{c}ak},
     title = {Modular 

 language specifications in {Haskell}},
     journal = {Novi Sad Journal of Mathematics},
     pages = {19-27},
     year = {2000},
     volume = {30},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2000_30_2a_3/}
}