Methods of measurement for radio transmitters - Part 2: Bandwidth, out-of-band power and power of non-essential oscillations Apendices Recommendation 244-2/A1 /  
 Recommendation 244-2/A1 
ISO, IEC. 
 - First edition. 
 - Geneva :   ISO :   IEC,   1969. 
 - 57 stron ;   30 cm.