@article{MZM_1991_50_3_a2,
     author = {S. A. Grigoryan and M. I. Zaslavskaya},
     title = {Real parts of functional algebras},
     journal = {Matemati\v{c}eskie zametki},
     pages = {20--26},
     publisher = {mathdoc},
     volume = {50},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_3_a2/}
}