Vacuum special issue proceedings of the conference on Vacuum Devices, University of Cambridge, 25-27 March, 1980 chairman : G F Weston - Oxford Pergamon Press 1980 - (p.357-567) ; 32 cm. - Vacuum v. 30 . ISBN: 0080273300 Subjects--Topical Terms: Vacuum technology--Congresses.Vacuum--Congresses.