@article{ASNSP_1965_3_19_2_127_0,
     author = {Nikolsky, S. M. and Lions, J. L. and Lizorkin, L. I.},
     title = {Integral representation and isomorphism properties of some classes of functions},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {127--178},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 19},
     number = {2},
     year = {1965},
     mrnumber = {188771},
     zbl = {0151.18001},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1965_3_19_2_127_0/}
}