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[文献書誌] K.Ohtsuki,K.Nakazawa and Y.Nakagawa: "Kinetic Behavior of Planetesimals Revolving the Sun" Adv.Space Res.10. 105-108 (1990)
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[文献書誌] K.Ohtsuki,Y.Nakagawa and K.Nakazawa: "Artificial Acceleration in Accumulation due to Coarse Mass-Coordinate Divisions in Numerical Simulation" Icarus. 83. 205-215 (1990)
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[文献書誌] S.Ida and K.Nakazawa: "Did Rotation of the Protoplanets Originate from Successive Collisions of Planetesimals?" Icarus. 86. 561-573 (1990)
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[文献書誌] S.Ida: "Stirring and Dynamical Friction of Planetesimals in the Solar Gravitational Field" Icarus. 88. 129-145 (1990)
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[文献書誌] H.Emori,S.Ida and K.Nakazawa: "A New Method of Numerical Integration of N-body Orbting in the External Potential" Pub1.Astron Soc.Jpn.,. 45. (1993)
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[文献書誌] H.Tanaka and K.Nakazawa: "Stochaotic Growth Equation and the Growth of Planets" J.Geomag.Geoelec.45. (1993)
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[文献書誌] K.Ohtsuki,S.Ida,Y.Nakagawa and K.Nakazawa: "Planetary Accretion in the Solar Gravitational Field “Protostars and Planets III"" es.Black,D.D.and Matthews,M.S.,Univ.Arizona press, (1992)