8HOG M. GPRS wireless solutions for monitoring and control systems. Water&Wastewater Asia,2006 ( 3 ) :46 - 47.
9BATKAUSKAS V. Adaptation of a remote control system for data exchange using a mobile data channel, electronics and electrical engineering,2007,75 (3) :61 - 64.
10AT Command Manual for Brodersen Products with Siemens MC55 Modem Engine. Siemens Corporation,2006.