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

Turnšek, D., Bărbulescu, A.
Upper Jurassic Hydrozoa in Central Dobrogea (Romania)
1969. Geologija 12, 73-84

Flügel, E.
Hydrozoen aus dem oberen Perm von Slovenija und Crna gora
1959. Geologija 5, 86-91

Jamnik, A., Ramovš, A., Turnšek, D.
Heterastridium conglobatum Reuss, 1865 (?Hydrozoan) in the Norian Limestone of the Kamnik Alps (Slovenia, NW Yugoslavia)
1990. Geologija 31/32, 199-207