EDTA impact on Cd2+ migration in apatite-water systemTõnsuaadu, Kaia; Viipsi, Karin; Trikkel, Andres; Viipsi, KarinJournal of hazardous materials2008 / p. 491-497 : ill https://www.sciencedirect.com/science/article/pii/S0304389407014999