00664naa#a2200193#i#450# EN\\bibl\131859 20260726112530.7 2712-7516 20260726b2026####ek#y0engy0150####ca RU Assessment of the economic efficiency of combining navigation tools to ensure the reliability of air navigation in special conditions Journal article Moscow ITBO University 2026 0 с. Journal article local Религия. Теология. 2 Sagitov Damir Il'darovich Titova Karina Alekseevna Sidorkina Alexandra Evgenievna zhpi.ru