Ba
Bor
C
CO2
Cu
dam
DSS
E
EGS
EMS
gas
GIS
GSO
H
HDR
Hum
N
O
oil
PAH
Pb
PCS
SEM
U

Hahn, G., Hahn, R.
A new contribution on the Gzhelian trilobites in the western Karavanke Mountains
1983. Geologija 26, 109-115

Chernyk, V. V., Chuvashov, B. I., Davydov, V. I., Schmitz, M., Snyder, W. S.
Usolka section (souther Urals, Russia): a potential candidate for GSSP to define the base of the Gzhelian Stage in the global chronostratigraphic scale
2006. Geologija 49/2, 205-218

Anko, K. P.
Upper Carboniferous spiriferid brachiopods from Karavanke Mountains, Slovenia
2007. Geologija 50/2, 427-444