@article{ISU_2014_14_3_a5,
     author = {I. S. Kruss},
     title = {On {Differential} {Operator} in {Compact} {Zero-dimensional} {Groups}},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {279--287},
     publisher = {mathdoc},
     volume = {14},
     number = {3},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2014_14_3_a5/}
}