@article{EUG_1985_8_a0,
     author = {P. R. Halmos},
     title = {O {\ensuremath{\Theta}\ensuremath{\rho}\ensuremath{\acute\upsilon}\ensuremath{\lambda}o\ensuremath{\varsigma}} \ensuremath{\tau}o\ensuremath{\upsilon} {John} von {Neuman}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {3--25},
     year = {1985},
     volume = {8},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1985_8_a0/}
}