TY - RPRT TI - Optical methods for measuring nucleoprotein and nucleic acid concentrations. AU - S W ENGLANDER AU - H T EPSTEIN PY - 1957 DO - 10.1016/0003-9861(57)90334-x UR - https://pubmed.ncbi.nlm.nih.gov/13435902/ ID - 13435902 ER -