Bezvesilnaya, Elena Nikolaevna, and Andriy Hennadiiovych Tkachuk. 2014. “RETRACTED ARTICLE: Corrected Gyrocompass Synthesis As a System With Changeable Structure for Aviation Gravimetric System With Piezoelectric Gravimeter”. Aviation 18 (3):134-40. https://doi.org/10.3846/16487788.2014.969878.