@article{ refId, author = {{Alkofer, Reinhard} and {Krassnigg, Andreas} and {Schweiger, Wolfgang}}, encoding = {tex}, title = {Preface}, DOI= "10.1140/epjst/e2007-00001-7", url= "http://dx.doi.org/10.1140/epjst/e2007-00001-7", journal = {Eur. Phys. J. Special Topics}, year = 2007, volume = 140, pages = "III-IV", month = "", }