@article{NM_2005_L_4_a5,
     author = {Milan \v{C}abarkapa},
     title = {Backtracking algorithms},
     journal = {Nastava matematike},
     pages = {36 },
     publisher = {mathdoc},
     volume = {L},
     number = {4},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NM_2005_L_4_a5/}
}