@article{SF_1989__38_2_134953,
     author = {M.L. Puri and D. Pfeifer and P. Deheuvels},
     title = {A new semigroup technique in {Poisson} approximation.},
     journal = {Semigroup forum},
     pages = {189--202},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1989},
     zbl = {0674.60026},
     url = {http://geodesic.mathdoc.fr/item/SF_1989__38_2_134953/}
}