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2. Geochemistry of U and Th and its influence on the origin and evolution of the earth' s crust and the biological evolution;Bao;Acta Petrologica et Mineralogica,1998
3. Tonsteins: altered volcanic-ash layers in coal-bearing sequences;Bohor;Geological Society of America,1993
4. Genesis of ferromanganese deposits — diagnostic criteria for recent and old deposits;Bostrom,1983
5. Provenace and accumulation rates of opaline silica, Al, Fe, Ti, Mn, Ni and Co in Pacific pelagic sediment;Bostrom;Chemical Geology,1973