%ASitnova, T%AMashonkina, L%AEzzeddine, R%AFrebel, A%BJournal Name: Monthly Notices of the Royal Astronomical Society; Journal Volume: 485; Journal Issue: 3 %D2019%I %JJournal Name: Monthly Notices of the Royal Astronomical Society; Journal Volume: 485; Journal Issue: 3 %K %MOSTI ID: 10105816 %PMedium: X %TUltra metal-poor stars: improved atmospheric parameters and NLTE abundances of magnesium and calcium %X %0Journal Article