@article{DE_2004_40_2_a15,
     author = {Sh. G. Kasimov},
     title = {Smoothness of {Means} of the {Spectral} {Resolutions} {Corresponding} to {Elliptic} {Pseudodifferential} {Operators} 
},
     journal = {Differencialʹnye uravneni\^a},
     pages = {268--270},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_2_a15/}
}