00697naa#a2200193#i#450# EN\\bibl\36396 20240430015244.2 2686-9896 20200605b2020####ek#y0engy0150####ca RU RELATIVISTIC EFFECTS IN CHEMICAL SHIFTS 13C NMR OF HALCOHEN-CONTAINING COMPOUNDS Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2020 1 с. Химия. 04.03.01 local Journal article local Rusakov Yuriy Yur'evich Rusakova Irina Leonidovna Krivdin Leonid Borisovich angtu.editorum.ru