For citations:
Ilyin G.S., Chukanov N.V., Rastsvetaeva R.K., Aksenov S.M. Pseudosymmetry and cation ordering in heterophyllosilicates. 1. Refinement of the crystal structure of schüllerite Ba2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4. LITHOSPHERE (Russia). 2025;25(2):212-220. (In Russ.) https://doi.org/10.24930/1681-9004-2025-25-2-212-220. EDN: YVUQHF