Melnikov Viktor Sergeevič and Grechanovskaya E. E. and Demenko D. P. and Kvasnytsya V. and Lazarenko E. E.: Micromineralogy of ignimbrites of Sokyrnytsya zeolite deposit (Transcarpatians, Ukraine). In: Acta mineralogica-petrographica, (5). p. 75. (2006)