@article{701907,
     title = {Set-valued mappings and structure of Banach spaces},
     booktitle = {Proceedings of the 14th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Circolo Matematico di Palermo},
     address = {Palermo},
     year = {1987},
     pages = {[345]-351},
     mrnumber = {MR0920867},
     zbl = {0643.47049},
     url = {http://dml.mathdoc.fr/item/701907}
}

Kolomý, Josef. Set-valued mappings and structure of Banach spaces, dans Proceedings of the 14th Winter School on Abstract Analysis, GDML_Books,  (1987), pp. [345]-351. http://gdmltest.u-ga.fr/item/701907/