%A Symposium on Surface Physics %A Sparnaay, M. J. (Marcus Johannes) %A Meyer, Friedrich %T The solid-vacuum interface : proceedings of the second Symposium on Surface Physics, Twente University of Technology, Enschede, The Netherlands, 21-23 June 1972 %I North-Holland %D 1973 %U https://ci.nii.ac.jp/ncid/BA26855846