An Incommensurate Reconstruction Studied with Scanning Tunnelling Microscopy and Surface X-Ray Diffraction Bernard Aufray, Mats Göthelid, Jean-Marc Gay, Christine Mottet, Erik Landemark, Gerald Falkenberg, Lars Lottermoser, Lorenz Seehofer and Robert L. Johnson Microsc. Microanal. Microstruct., 8 3 (1997) 167-174 DOI: 10.1051/mmm:1997116