Karpik, A. P., N. S. Kosarev, K. M. Antonovich, I. G. Ganagina, and V. Y. Timofeev. “Operational Experience of GNSS Receivers With Chip Scale Atomic Clocks for Baseline Measurements”. Geodesy and Cartography, vol. 44, no. 4, Dec. 2018, pp. 140-5, doi:10.3846/gac.2018.4051.