@article{10_4064_am_13_4_419_427,
     author = {Teresa Ryba},
     title = {Queueing system with merging of two input streams},
     journal = {Applicationes Mathematicae},
     pages = {419--427},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {1972},
     doi = {10.4064/am-13-4-419-427},
     zbl = {0385.60077},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-13-4-419-427/}
}