TY - GEN A1 - Hartmann, Jürgen A1 - Fischer, J. A1 - Seidel, J. T1 - Improved accuracy in measurement of radiometric apertures with a non-contact technique BT - Newrad’99 (Poster) Y1 - 1999 CY - Madrid (Spanien) ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Fischer, J. A1 - Seidel, J. T1 - A non-contact technique providing improved accuracy in area measurements of radiometric apertures JF - Metrologia Y1 - 2000 UR - http://permalink.bibkatalog.de/BV012573233 IS - 37 SP - 637 EP - 640 ER -