TY - RPRT TI - A mechanical microdensitometer. AU - U W Arndt AU - J B Leigh AU - J F Mallett AU - K E Twinn PY - 1969 DO - 10.1088/0022-3735/2/5/301 UR - https://pubmed.ncbi.nlm.nih.gov/5800487/ ID - 5800487 ER -