“qNMR quantification and in silico analysis of isobrucein B and neosergeolide from Picrolemma sprucei as potential inhibitors of SARS-CoV-2 protease (3CLpro) and RNA-dependent RNA polymerase (RdRp) and pharmacokinetic and toxicological properties” (2021) Research, Society and Development, 10(16), p. e69101623220. doi:10.33448/rsd-v10i16.23220.