?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Schirra%2C+Dr+J%C3%B6rg+R.J.&rft.aulast=Schirra&rft.aufirst=J%C3%B6rg+R.J.&rft.date=October+2003&rft.title=Variations+and+Application+Conditions+Of+the+Data+Type+%C2%BBImage%C2%AB+-+The+Foundation+of+Computational+Visualistics&rft.inst=Otto-von-Guericke-Universit%C3%A4t+Magdeburg