(NpEREUSTROJSTWO OROSITELXNYH SISTEM SREDNEGO TE^ENIQ aMU(B-(NdARXI (B/ s - (NrATNER(B, (Nd(B.(Nn(B. s ((Na[HABAD (B: s [(NB(B. (NI(B.], s, 1959)
Keywords: (NoROSITELXNYE SISTEMY (B- (NpOSTROJKA (B- (N~ARDVOUSKAQ OBL(B.s