@article{AL_1992_31_5_a3,
     author = {D. E. Pal'chunov},
     title = {Direct summands of {Boolean} algebras with distinguished},
     journal = {Algebra i logika},
     pages = {499--537},
     publisher = {mathdoc},
     volume = {31},
     number = {5},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1992_31_5_a3/}
}