TY - RPRT TI - Changes in axon birefringence during the action potential. AU - L B Cohen AU - B Hille AU - R D Keynes PY - 1970 DO - 10.1113/jphysiol.1970.sp009289 UR - https://pubmed.ncbi.nlm.nih.gov/5501012/ ID - 5501012 ER -