000			00342pam a2200157a 44500
008			230515b2011 xxu||||| |||| 00| 0 eng d
020			_aNULL
041			_aENGLISH
082			_a4.62
100			_aALENCAR
245			_aCOMMUNICATION SYSTEMS
250			_a2008
260			_aDELHI _bSPRINGER _c2011
300			_aXII-416
650			_aNULL
999			_c648559 _d648559