TY - JOUR A1 - Schwarz, Wolfram A1 - Schmidt, Daniel T1 - A test chart for STEREOSCAN 180 by generating grey-scale signals in staircase form T2 - Scanning PB - Wiley CY - Hoboken, NJ PY - 1978 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/8950 AN - OPUS4-8950 SN - 0161-0457 SN - 1932-8745 VL - 1 IS - 2 SP - 131 EP - 133 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany