@article{DM_2001_13_3_a3,
     author = {Yu. B. Nikitin},
     title = {On the sorting complexity of {Cartesian} products of partially ordered sets},
     journal = {Diskretnaya Matematika},
     pages = {57--74},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2001_13_3_a3/}
}