LDR 00546naa#a2200169#i#450# 001 EN\\bibl\43348 005 20240911180858.3 011 ## _a1609-3178 100 ## _a20210514b2021####ek#y0engy0150####ca 102 ## _aRU 200 1# _aMethod for Operational Diagnostics of the Prepumping State of Gas Turbine Engines Based on Invariants of Acoustic Processes _eJournal article 210 1# _aSaint-Petersburg _cLLC SVEN _d2021 215 ## _a3 с. 608 ## _aJournal article _2local 700 #1 _aPopov _gAleksey V. 700 #1 _aRomanov _gAleksandr A. 856 4# _anaukaru.ru _u