@article{MZM_1999_66_6_a16,
     author = {I. V. Protasov},
     title = {Equations in $\beta G$ and the decomposability of abelian groups},
     journal = {Matemati\v{c}eskie zametki},
     pages = {951--953},
     publisher = {mathdoc},
     volume = {66},
     number = {6},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_66_6_a16/}
}