@article{DA_1996_3_1_a7,
     author = {A. G. Shchukin and N. I. Glebov},
     title = {On the complexity of some generalizations of {Johnson's} two-machine problem},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {80--90},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1996_3_1_a7/}
}