@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}, publisher = {mathdoc}, volume = {30}, number = {2}, year = {2000}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2000_30_2a_3/} }