@article{HartmannFischerSeidel2000, author = {Hartmann, J{\"u}rgen and Fischer, J. and Seidel, J.}, title = {A non-contact technique providing improved accuracy in area measurements of radiometric apertures}, journal = {Metrologia}, number = {37}, institution = {Fakult{\"a}t Elektrotechnik}, pages = {637 -- 640}, year = {2000}, language = {en} }