Popular Science Article on ETAK, July 1985 Paper presented at the Royal Institute of Navigation meeting in York 1985 ETAK's initial product brochure 1985 technical paper on ETAK Map Matching Augmented Dead Reckoning 1986 The Forgotten Story of Etak's Amazing 1985 Car Navigation System  Edwards 2015 Etak software article in the C Journal by Ken Milnes and George Loughmiller Etak Innovation summary  [caption id="attachment_63" align="alignnone" width="439"] Early engineering group LtoR: Terry Obrien, Marv White, Walt Zavoli, Alan Phillips, Jamie Buxton, Ken Milnes, Stan Honey, Jerry Russell.[/caption]