Functional Analysis and Its Applications
Functional Analysis and Its Applications > 2015 > 49 > 4 > 239-252
Functional Analysis and Its Applications > 2016 > 50 > 4 > 281-290
Functional Analysis and Its Applications > 2018 > 52 > 3 > 228-231
Functional Analysis and Its Applications > 2018 > 52 > 3 > 224-227