@article{FPM_1998_4_1_a10,
     author = {A. P. Kombarov},
     title = {Weak normality of~$2^{X}$ and of~$X^{\tau}$},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {135--140},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1998_4_1_a10/}
}