@article{BonKnoLuzPinSkr17,
   author = {Bonamy, M. and Knor, M. and  Lu\v{z}ar, B. and Pinlou, A. and \v{S}krekovski, R.},
   title = {{On the difference between the Szeged and the Wiener index}},
   journal = {Appl. Math. Comput.},
   volume = {312},
   pages = {202--213},
   year = {2017}
}