@article{MET_1983__30_175865,
     author = {G.S. Mudholkar and E.O. George},
     title = {On the {Convolution} of {Logistic} {Random} {Variables.}},
     journal = {Metrika},
     pages = {1--14},
     publisher = {mathdoc},
     volume = {30},
     year = {1983},
     zbl = {0513.60031},
     url = {http://geodesic.mathdoc.fr/item/MET_1983__30_175865/}
}