Alkali -borfluorides, alkali fluor sulfonates and potassium perrhenate.

[1] Broch E, 1929, Z PHYS CHEM B-CHEM E, V6, P22

[2] CARNELLEY, 1878, J CHEM SOC, V33, P273

[3] GRAHMANN, 1912, THESIS LEIPZIG

[4] Herrmann K, 1930, Z KRISTALLOGR, V75, P41

[5] LANGE W, 1923, THESIS BERLIN

[6] RINNE F, 1924, ZENTRALBL, P161

[7] 1924, ZTRBL MINERAL, P161

[8] 1927, Z ANORGAN CHEM, V159, P197

[9] 1929, FORTSCHR MINERALOG K, V14, P279

[10] 1930, Z KRYSTALLOGR, V72, P541

[1] Broch E, 1929, Z PHYS CHEM B-CHEM E, V6, P22

[2] CARNELLEY, 1878, J CHEM SOC, V33, P273

[3] GRAHMANN, 1912, THESIS LEIPZIG

[4] Herrmann K, 1930, Z KRISTALLOGR, V75, P41

[5] LANGE W, 1923, THESIS BERLIN

[6] RINNE F, 1924, ZENTRALBL, P161

[7] 1924, ZTRBL MINERAL, P161

[8] 1927, Z ANORGAN CHEM, V159, P197

[9] 1929, FORTSCHR MINERALOG K, V14, P279

[10] 1930, Z KRYSTALLOGR, V72, P541