@article{IJAMCS_2010_20_2_a12,
     author = {B{\l}a\.zewicz, J. and Kovalyov, M. Y. and Musia{\l}, J. and Urba\'nski, A. P. and Wojciechowski, A.},
     title = {Internet shopping optimization problem},
     journal = {International Journal of Applied Mathematics and Computer Science},
     pages = {385--390},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJAMCS_2010_20_2_a12/}
}