[PDF 링크] World Equipment Guide 2011
volume 1: ground systems -> http://cdm16040.contentdm.oclc.org/utils/getfile/collection/p4013coll11/id/2089/filename/2090.pdf
volume 2: airspace and air defense systems -> http://cdm16040.contentdm.oclc.org/utils/getfile/collection/p4013coll11/id/2090/filename/2091.pdf
volume 3: naval and littoral systems - > http://cdm16040.contentdm.oclc.org/utils/getfile/collection/p4013coll11/id/2091/filename/2092.pdf