Franus Wojciech; Manecki A.; Sapota T.: Heavy minerals from the Variegated Shales Member of the skole unit (Polish flysch Carpathians). In: Acta mineralogica-petrographica, (41). p. 42. (2000)
Franus Wojciech; Manecki A.; Wieser T.: Occurrence of rancieite in the Polish Flysch Carpathians. In: Acta mineralogica-petrographica, (41). p. 43. (2000)