Мрачковський, О., and А. А. Часник. “Analysis of Navigation C/A - Code of GPS System”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 47, Dec. 2011, pp. 77-83, doi:10.20535/RADAP.2011.47.77-83.