To the 100th birthday of outstanding Ukrainian scientist in the field of gyroscopy Volodymyr Mykolayovych Koshlyakov (21.12.1922–16.02.2009). - Lukovs’kyi, I. O.; Makarov, V. L.; Tymokha, O. M.; Novyts’kyi, V. V. (Ukrains’kyi Matematychnyi Zhurnal, 2023)