TY - CONF A1 - Augenstein, Edgar A1 - Leopold, F. A1 - Richard, H. T1 - Schlieren Techniques in Comparison The Background Oriented Method versus Visualization with Holographic Filters Y1 - 2003 UR - https://opus4.kobv.de/opus4-UBICO/frontdoor/index/index/docId/1462 ER -