@article{10_4064_am30_4_2,
     author = {Rafa{\l} Kulik},
     title = {Stochastic comparison of multivariate
 random sums},
     journal = {Applicationes Mathematicae},
     pages = {379--387},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {2003},
     doi = {10.4064/am30-4-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am30-4-2/}
}