THE 40th ANNIVERSARY OF UNIVERSITY OF PETROLEUM IN CHINA; pp. 257–259
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ESTONIAN ACADEMY
PUBLISHERS
PUBLISHERS
eesti teaduste
akadeemia kirjastus
akadeemia kirjastus
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PUBLISHED SINCE 1984 |
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Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
ISSN 0208-189X (Print)
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