@article{NSJOM_2008_38_3a_18,
     author = {D. Kalaj and M. Mateljevi\'c},
     title = {Quasiconformal and

 harmonic mappings},
     journal = {Novi Sad Journal of Mathematics},
     pages = {147-156},
     year = {2008},
     volume = {38},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2008_38_3a_18/}
}