Archive document Nulf, Karen. – 1980 Athens video festival video competition : judges comments. – October 16, 1980. – [1] p. – Archives documents. – Judge's comments. – Included in the file entitled «Athens international film/video festival».
Archive document Nulf, Karen. – 1979 Athens video festival video competition : judges comments. – October 17, 1979. – [1] p. – Archives documents. – Judge's commentaries. – Included in the file entitled «Athens international film/video festival».