@article{NSJOM_2000_30_3a_7,
     author = {P. R. 

 Lazov and A. L. Buchkovska},
     title = {About 

 some generalizations of the square root functions using a simple vector 

 chain},
     journal = {Novi Sad Journal of Mathematics},
     pages = {69-82},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {2000},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2000_30_3a_7/}
}