NLOS Fire Unit concept of employment
U.S. Army Air Defense Artillery School
<a rel="nofollow" class="external text" href="https://babel.hathitrust.org/cgi/imgsrv/download/pdf?id=ien.35556028749901;orient=0;size=100;seq=239;attachment=0">Air Defense Artillery</a>, November-December 1989, Page 3