LDR 00601naa#a2200181#i#450# 001 EN\INFRA-M\bibl\41229 005 20240423160929.2 011 ## _a2500-0489 100 ## _a20210125b2021####ek#y0engy0150####ca 102 ## _aRU 200 1# _aAnalogues of hyperboloids in four–dimensional space _eJournal article 210 1# _aMoscow _cINFRA-M Academic Publishing LLC. _d2021 215 ## _a3 с. 608 ## _aJournal article _2local 675 ## _aОбщие вопросы математических и естественных наук. 50 _z 700 #1 _aVavanov _gD. 700 #1 _aIvaschenko _gA. V. 856 4# _ariorpub.com _u