TY - RPRT TI - A delay line to record random action potentials. AU - H Nissen-Petersen AU - C Guld AU - F Buchthal PY - 1969 DO - 10.1016/0013-4694(69)90040-6 UR - https://pubmed.ncbi.nlm.nih.gov/4183186/ ID - 4183186 ER -