@article{ZNSL_1987_159_a5,
     author = {N. B. Lebedinskaya and T. E. Safonova},
     title = {Stability of optimal structured schedule},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {56--68},
     publisher = {mathdoc},
     volume = {159},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1987_159_a5/}
}