00588naa#a2200169#i#4500001002200000005001700022011001400039100004100053102000700094200007900101210005100180215001000231608002700241675010300268700003200371856001500403EN\INFRA-M\bibl\5105220241107215204.4##a2587-9111##a20220624b2022####ek#y0engy0150####ca##aRU1#aConstruction and Analysis of the Operating Leverage CurveeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2022##a5 с.##aJournal article2local##aЭкономика. Народное хозяйство. Экономические науки. 33#1aAverinagTatyana Nikolaevna4#anaukaru.ru