@Article{zbMATH03755322,
Author = {A. V. {Babin}},
Title = {{Fractional powers of a nonlinear analytic differential operator.}},
FJournal = {{Mathematics of the USSR, Sbornik}},
Journal = {{Math. USSR, Sb.}},
ISSN = {0025-5734},
Volume = {37},
Pages = {9--38},
Year = {1980},
Publisher = {American Mathematical Society (AMS), Providence, RI},
Language = {English},
MSC2010 = {47J05 47J25 34A34},
Zbl = {0481.47046}
}