TY - RPRT TI - SIMPLE TECHNIQUES FOR MEASURING PULSE INTERVALS OR AVERAGE FREQUENCY IN NERVE MESSAGES. AU - J HOUK AU - V SANCHEZ AU - W L STIEHL AU - B F WELLS PY - 1964 DO - 10.1016/0013-4694(64)90191-9 UR - https://pubmed.ncbi.nlm.nih.gov/14229860/ ID - 14229860 ER -