00601naa#a2200181#i#4500001001500000005001700015011001400032100004100046102000700087200010200094210005800196215001000254608002700264675004000291700003500331700003200366856002100398EN\\bibl\6412320241122154615.5##a2072-9502##a20230428b2023####ek#y0engy0150####ca##aRU1#aHeuristic assessment of service quality:  case of mobile communication operatorseJournal article1#aAstrakhancAstrakhan State Technical Universityd2023##a6 с.##aJournal article2local##aЭффективность. 004.051#1aNikulingVladimir Valer'evich #1aAfoningViktor Vasil'evich 4#avestnik.astu.org