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 T2 - Metrologia Y1 - 2000 UR - https://opus4.kobv.de/opus4-fhws/frontdoor/index/index/docId/799 UR - http://permalink.bibkatalog.de/BV012573233 IS - 37 SP - 637 EP - 640 ER -