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1
Caves and Speleology in Bulgaria.
Independely Published
Petŭr Beron
,
Trifon Daaliev
,
Alexey Jalov
cave
caves
entrance
bulgarian
peshtera
bulgaria
dupka
caving
gallery
sofia
cavers
pothole
distr
photo
denivelation
karstic
species
chamber
siphon
fauna
expedition
explored
remarkable
daaliev
troglobite
vertical
limestone
surveyed
formations
karlukovo
beron
formed
situated
galleries
underground
discovered
karst
planina
popov
temnata
speleology
akademik
troglobites
coordinates
altitude
western
trifon
flowstone
exploration
golyamata
Year:
2006
Language:
english
File:
PDF, 37.33 MB
Your tags:
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0
english, 2006
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