E. Parthé, L. Gelato, B. Chabot, M. Penzo, K. Cenzual, and R. Gladyshevskii (eds.). Gmelin handbook of inorganic and organometallic chemistry 8th edition. TYPIX standardized data and crystal chemical charakterization of inorganic structure types. Springer‐Verlag Berlin: Vol. 1 (1993) pp. 1–260, DM 1.200,–, ISBN 3–540–93682–3; Vol. 2 (1993) pp. 261–668, DM 1.300,–, ISBN 3–540–93683–1, Vol. 3 (1994) pp. 669–1180, DM 1.150,–, ISBN 3–540–93684–X, Vol. 4 (1994) pp. 1181 – 1596, DM 1.150,–, ISBN 3–540–93685–8