NASA conference publication ; I Mech E conference publications ; I Mech E Conference publications ; I Mech E conference publications 1979-11 I Mech E Conference publications 1979-9 I Mech E Conference publications 1979-10 I Mech E Conference publications 1979-13 A Wiley-Interscience publication I Mech E Conference Publications 1984-11 IEE conference pub. ;