LDR 00583naa#a2200181#i#450# 001 EN\INFRA-M\bibl\13164 005 20240425043455.4 011 ## _a2308-4898 100 ## _a20160919b2016####ek#y0engy0150####ca 101 0# _aRUS 102 ## _aRU 200 1# _aThe Duality Principle Is the Theoretical Basis of Interrelation of Synthetic and Analytical Methods of Solving Geometric Problems _eJournal article 210 1# _aMoscow _cINFRA-M Academic Publishing LLC. _d2016 215 ## _a7 с. 608 ## _aJournal article _2local 700 #1 _aIvanov _gG. 700 #1 _aDmitrieva _gI. M. 856 4# _ariorpub.com _u