@article{MET_1972__19_175518,
     author = {K. Murari},
     title = {A {Queueing} {Problem} with {Arrival} and {Service} in {Batches} of {Variable} {Size.}},
     journal = {Metrika},
     pages = {27--35},
     publisher = {mathdoc},
     volume = {19},
     year = {1972},
     zbl = {0266.60072},
     url = {http://geodesic.mathdoc.fr/item/MET_1972__19_175518/}
}