@article{DM_2003_15_3_a1,
     author = {S. S. Marchenkov},
     title = {Boolean reducibility},
     journal = {Diskretnaya Matematika},
     pages = {40--53},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2003_15_3_a1/}
}