TY - RPRT TI - Simultaneous two-channel frequency analyzer designed by the authors. AU - T WADA AU - A GOTO AU - Y FUKUSHIMA AU - T SHIMIZU AU - T OYA PY - 1961 DO - 10.1620/tjem.75.259 UR - https://pubmed.ncbi.nlm.nih.gov/14004245/ ID - 14004245 ER -