@article{NSJOM_1995_25_2a_18,
     author = {To\v{s}i\'c 

 Ratko and Stojmenovi\'c Ivan},
     title = {Chemical 

 graphs, {Kekule} structures and {Fibonacci} numbers},
     journal = {Novi Sad Journal of Mathematics},
     pages = {179-195},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {1995},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1995_25_2a_18/}
}