@article{NSJOM_2005_35_1a_16,
     author = {D. Ma\v{s}ulovi\'c and M. Pech},
     title = {On 

 traces of maximal clones},
     journal = {Novi Sad Journal of Mathematics},
     pages = {161-185},
     year = {2005},
     volume = {35},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2005_35_1a_16/}
}