@article{AL_1969_8_1_a5,
     author = {B. A. Trakhtenbrot},
     title = {The complexity of reduction algorithms in {Novikov-Boone}},
     journal = {Algebra i logika},
     pages = {93--128},
     year = {1969},
     volume = {8},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1969_8_1_a5/}
}