Keyword "PHONOLITE" in:

Phonolite and trachyte dykes on Huseň Hill in the Doupovské hory Mts.
Vladislav Rapprich, Zoltán Pécskay, Jan Matějů, volume 52, issue 1, 2019, pages 11–16
pdf (7.45 MB)

Newly drilling-detected phonolite intrusions in Lužické hory Mts.
Vladislav Rapprich, Roland Nádaskay, volume 50, issue 2, 2017, pages 207–213
pdf (5 MB)