Age of Estonian kukersite oil shale - Middle or Late Ordovician?

statement of authorship
O.Hints, J.Nõlvak, V.Viira
source
journal volume number month
V.24
year of publication
pages
4, p. 527-533 : ill
ISSN
0208-189X
notes
Bibliogr.: 21 ref
language
inglise
Hints, O., Nõlvak, J., Viira, V. Age of Estonian kukersite oil shale - Middle or Late Ordovician? // Oil shale (2007) V.24, 4, p. 527-533 : ill. https://artiklid.elnet.ee/record=b2376556*est