00651naa#a2200181#i#450# EN\\bibl\41122 20240501123012.3 2686-777X 20201215b2020####ek#y0engy0150####ca RU 1H AND 13C NMR SPECTRA OF STRYCHNOS ALKALOIDS: SELECTED NMR UPDATES Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2020 17 с. Journal article local Semenov Valentin Aleksandrovich Samul'cev Dmitriy Olegovich Krivdin Leonid Borisovich angtu.editorum.ru