@article{NSJOM_1993_23_2a_18,
     author = {To\v{s}i\'c 

 Ratko and Bodro\v{z}a Olga},
     title = {Enumeration of 2-factors of {P5} 

 {\textperthousand} 

 {Pn}},
     journal = {Novi Sad Journal of Mathematics},
     pages = {211-219},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1993_23_2a_18/}
}