titles have borne the SP identifier. How NASA Special Publications came about may be instructive. Along with several predecessor agencies, NASA research laboratories were accustomed to publishing reports, using a formal structure of four or five separate series, with the characteristics of each series carefully defined. Mar NASA SP, “Space Settlements, A Design Study,” was published in and brought together the results of a NASA-Ames Research Center effort to do a preliminary study of a giant torus space station for several thousand permanent inhabitants. The document (hard copy) is available through NASA/Ames Research Center Library. For further information contact the reference staff at () R.D. Johnson, C Holbrow, editors, Space Settlements: A Design Study, NASA, SP, Scientific and Technical.
Taurg
I consider, that you are not right. I suggest it to discuss.
Akinorg
The question is removed
Durn
I am final, I am sorry, but it is necessary for me little bit more information.