@article{AL_1997_36_4_a1,
     author = {B. I. Zil'ber},
     title = {Generalized analytic sets},
     journal = {Algebra i logika},
     pages = {387--406},
     year = {1997},
     volume = {36},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1997_36_4_a1/}
}