Molybdenite-tungstenite association in the tungsten-bearing topaz greisen at Vítkov (Krkonoše-Jizera Crystalline Complex, Bohemian Massif): indication of changes in physico-chemical conditions in mineralizing system - Pašava, Jan; Veselovský, František; Drábek, Milan; Svojtka, Martin; Pour, Ondřej; Klomínský, Josef; Škoda, Radek; Ďurišová, Jana; Ackerman, Lukáš; Halodová, Patricie; Haluzová, Eva (Journal of Geosciences, 2015)