TY - RPRT TI - Mass determination by interference- and x-ray microscopy. A comparative study. AU - W GRAMPP AU - O HALLEN AU - B ROSENGREN PY - 1960 DO - 10.1016/0014-4827(60)90053-7 UR - https://pubmed.ncbi.nlm.nih.gov/13828855/ ID - 13828855 ER -