International Astronautical Federation - 58th International Astronautical Congress 2007.
International Astronautical Federation, IAF.
Том 7.
2007.
С. 4622-4640
International Astronautical Federation - 56th International Astronautical Congress 2005.
International Astronautical Federation, IAF.
Том 5.
2005.
С. 3236-3246