LDR 00689naa#a2200193#i#450#
001     EN\INFRA-M\bibl\18444
005     20240929002249.7
011 ## _a1998-071X
100 ## _a20170625b2017####ek#y0engy0150####ca
101 0# _aRUS
102 ## _aRU
200 1# _aUsed in Acoustic Projects Calculation of Reflection Coefficient for End Opening of Channel without Flange
       _eJournal article
210 1# _aMoscow
       _cINFRA-M Academic Publishing LLC.
       _d2017
215 ## _a7 с.
608 ## _aJournal article
       _2local
675 ## _aОбщие вопросы математических и естественных наук. 50
       _zRUS
700 #1 _aTupov
       _gVladimir Viktorovich
700 #1 _aMironova
       _gA. N.
856 4# _azh-szf.ru
       _u