TY - GEN AU - Guelylah,A AU - Madariaga,G AU - Petricek,V AU - Breczewski,T AU - Aroyo,M I AU - Bocanegra,E H TI - X-ray diffraction study of the phase transition of K2Mn2(BeF4)3: a new type of low-temperature structure for langbeinites SN - 0108-7681 PY - 2001///0726 N1 - Publication Type: Journal Article UR - https://doi.org/10.1107/s0108768100019960 ER -