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Ohkubo Tatsuhiro : Radiocesium dynamics in a Japanese forest ecosystem : initial stage of contamination after the incident at Fukushima Daiichi Nuclear Power Plant / Chisato Takenaka, Naoki Hijii, Nobuhiro Kaneko, Tatsuhiro Ohkubo, editors.
Ohlbach Hans Jurgen : Principles and practice of Semantic Web reasoning : second international workshop, PPSWR 2004, St. Malo, France, September 6-10, 2004 : proceedings / Hans Jurgen Ohlbach, Sebastian Schaffert (eds.).
Ohlen Donald O : Hydrologic effects of the 1988 Galena Fire, Black Hills area, South Dakota / by Daniel G. Driscoll and Janet M. Carter, U.S. Geological Survey, and Donald O. Ohlen, SAIC, EROS Data Center, Sioux Falls, South Dakota ; prepared in cooperation with the State of South Dakota, West Dakota Water Development District, and the U.S. Department of Agriculture (Forest Service).