p. 31-37
p. 408-413
p. 414-417
p. 562-565
p. 689-698
p. 302-310
p. 113-122
p. 123-140
p. 170-179
p. 535-537
p. 615-626
p. 641-648
p. 443-449
p. 699-704
p. 150-169
p. 227-240
p. 311-323
p. 324-334
Error bound for a generalized M.\,A.~Lavrentiev's formula via the norm in a fractional Sobolev space
p. 335-377
p. 591-614
p. 90-108
p. 491-503
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p. А.1-А.6
p. А.13-А.29
p. А.30-А.34
p. А.42-А.50
p. А.51-А.53
p. А.54-А.65