@inproceedings{oai:jaxa.repo.nii.ac.jp:00038392,
 author = {城野, 信一 and 山本, 哲生 and Shirono, Shinichi and Yamamoto, Tetsuo},
 book = {第28回月・惑星シンポジウム, Proceedings of the 28th ISAS Lunar and Planetary Symposium},
 month = {Dec},
 note = {Pressure density relation of powder near the percolation threshold is investigated from percolation theory to find the density of planetesimal. It is shown that the density of a planetesimal is estimated to be 0.2 g/cu cm., 資料番号: AA0063352025},
 pages = {94--97},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)},
 title = {Density of planetesimals},
 year = {1995}
}