TY - RPRT TI - Extreme vacuum technology including cryosorption, diffusion pump and pressure calibration studies quarterly status report no. 7, 1 feb. - 1 may, 1965 AU - Bryant, P. J. AU - Gosselin, C. M. PY - 1965 UR - https://ntrs.nasa.gov/citations/19650016444 ID - 19650016444 ER -