Rudin, W.
Functional analysis - 2nd ed. - Boston; Massachusetts McGraw Hill 1991 - xv, 424p. - International series in pure and applied mathematics .
0-07-054236-8
Functional analysis - 2nd ed. - Boston; Massachusetts McGraw Hill 1991 - xv, 424p. - International series in pure and applied mathematics .
0-07-054236-8