"smale, p h. "
introduction to telecommunications systems: / p.h. smale - 1 ed. - uk : pitman 1986. - "iv, 153p.; 24 cm."
0-273-02442-6
--
621. 38 sma
introduction to telecommunications systems: / p.h. smale - 1 ed. - uk : pitman 1986. - "iv, 153p.; 24 cm."
0-273-02442-6
--
621. 38 sma