00502naa#a2200169#i#4500001002100000005001700021011001400038100004100052101000800093102000700101200009700108210005100205215001000256608002700266700002400293856001500317EN\INFRA-M\bibl\937720240517035321.5##a1998-0701##a20151117b2015####ek#y0engy0150####ca0#aRUS##aRU1#aLinear Approximation of Costs As the Basis of Planning Company’s ActivityeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2015##a5 с.##aJournal article2local#1aMashinistovagG. E.4#anaukaru.ru