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Eesti Geograafia Seltsi aastaraamat
(1990)
Annual report of the Geological Survey and Mines Department : for the year ended 31.12. ...
(1958)
Morphologie (erster Teil)
Philippson, Alfred, (1923)
The creaming method : a Bayesian procedure to forecast future oil and gas discoveries in mature exploration provinces
Meisner, J., (1981)