00651naa#a2200169#i#450# EN\\bibl\70748 20240706022540.6 2712-7761 20231011b2023####ek#y0engy0150####ca RU Cations ordering in minerals with complex composition: P3-sergevanite — the second representative of eudialyte group with primitive cell Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2023 4 с. Journal article local Силикаты. 548.736.6 . Rastsvetaeva R. K. komisc.editorum.ru