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[文献書誌] K.Ohtsuki,K.Nakazawa & Y.Nakagawa: "Kinetic Behavior of Planetesimals Revolving around the Sun" Adv.Space Res.10. 105-108 (1990)
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[文献書誌] K.Ohtsuki,Y.Nakagawa & K.Nakazawa: "Artificial Acceleration in Accumulation due to Coarse MassーCoordinate Divisions in Numerical Simulation" Icarus. 83. 205-215 (1990)
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[文献書誌] M.Hasegawa & K.Nakazawa: "Distant Encounter between Keplerian Particles" Astron.Adtrophys.227. 619-627 (1990)
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[文献書誌] S.Watanabe,Y.Nakagawa & K.Nakazawa: "Cooling and Quasiーstatic Contraction of the Primitive Solar Nebula after Gas Accretion" Astrophys.J.358. 282-292 (1990)
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[文献書誌] M.Hasegawa & K.Nakazawa: "Enhancement of the Random Motion of Planetesmals due of the Nonーaxisymmetric Density Wave in the Solar Nebula" Astron.Astrophys.(1991)
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[文献書誌] S.Ida & K.Nakazawa: "Did Rotation of the Protoplanets Originate from the Successive Collisions of Planetesimals?" Icarus. 86. 561-573 (1990)
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[文献書誌] K.Ohtsuki,S.Ida,Y.Nakagawa & K.Nakazawa(分担): "Protostars and Planets III" Arizona University Press, (1991)
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[文献書誌] K.Nakazawa,S.Ida & K.Ohtsuki(分担): "Primitive Solar Nebula" Terra Scientific Publication, (1991)