Speck, C.Speck, C.2012-05-032012-05-032011Selected Letters of Hans Heysen and Nora Heysen, 2011 / Speck, C. (ed./s), vol.11-12, pp.1-199780642277305http://hdl.handle.net/2440/70646Type of work : NONCOMMenCopyright status unknownIntroductionBook chapter002011661610.1002/9783527620999.chn2-s2.0-8497876552425861Speck, C. [0000-0002-1920-2759]