Reference

Petr Dobes, Lukas Vondrovic, Jakub Trubac, David Dolejs (2011): Cassiterite-wolframite mineralization at Jermanice in the Krkonose-Jizera pluton (Czech Republic) - mineral chemistry, fluid inclusions, and stable isotopes – Berichte der Geologischen Bundesanstalt – 87: 62 - 63.