@misc{indiciae428272b53a3e, title = {MINIMIZING SELF-ABSORPTION IN 4 PI BETA-COUNTING.}, author = {N A HALLDEN and I M FISENNE}, year = {1963}, doi = {10.1016/0020-708x(63)90035-8}, url = {https://pubmed.ncbi.nlm.nih.gov/14087581/}, note = {Source identifier: 14087581} }