by Gaubert, Alain
published in Space Policy (2002)

by Harris, Philip R
published in Space Policy (2002)

by Fabre, Hubert
published in Space Policy (2002)

published in Space Policy (2002)

published in Space Policy (2002)

by Mrazek, Robert J.
published in Space Policy (1989)

by Pelton, Joseph N.
published in Space Policy (1992)

by Goehlich, Robert A.; Blanksby, Chris; Goh, Gérardine M.; Hatano, Yuko; Pečnik, Bojan; Wong, Julielynn
published in Space Policy (2005)

by Hettling, Jana K
published in Space Policy (2003)

by Pedersen, Kenneth S.
published in Space Policy (1992)

by Boutros-Ghali, Boutros
published in Space Policy (1994)

by Johnson-Freese, Joan
published in Space Policy (1994)

published in Space Policy (2002)

published in Space Policy (2002)

by Ryzenko, Jakub
published in Space Policy (2003)

published in Space Policy (2003)

by Alexander, Joseph K
published in Space Policy (2003)

by He, Sibing
published in Space Policy (2003)

by Haubold, Hans J
published in Space Policy (2003)

by McCurdy, Howard E
published in Space Policy (2002)