LDR 00579naa#a2200169#i#450# 001 EN\\bibl\45335 005 20241124152753.7 011 ## _a2072-9502 100 ## _a20210726b2021####ek#y0engy0150####ca 102 ## _aRU 200 1# _aBASIC CLASSIFIERS OF FORMAL CLASSIFICATION THEORY OF TECHNICAL SYSTEMS: HIERARCHIES, VECTORS AND MATRICES, BANDS _eJournal article 210 1# _aAstrakhan _cAstrakhan State Technical University _d2021 215 ## _a12 с. 608 ## _aJournal article _2local 675 ## _aМатематика. 51 _z 700 #1 _aFedorova _gNatalia Vasilyevna 856 4# _avestnik.astu.org _u