Breast milk and serum selenium levels in Finland, Estonia, St. Petersburg and KarelianKantola, M.; Vartiainen, T.; Mand, E.; Viitak, Anu; Tooming, M.; Juravskaja, J.; Purkunen, R.; Saarikoski, S.; Pasanen, M.Journal of trace elements in experimental medicine1995 / 2, p. 87 On differences between racemic and enantiomerically pure forms of aziridine-2-carboxamideTurks, M.; Rijkure, I.; Meikas, A.; Valkna, AndresChemistry of heterocyclic compounds2012 / p. 861-868 : ill https://link.springer.com/article/10.1007/s10593-012-1067-2