TY - RPRT TI - Valinomycin-based K+ selective microelectrodes with low electrical membrane resistance. AU - D Ammann AU - P S Chao AU - W Simon PY - 1987 DO - 10.1016/0304-3940(87)90153-4 UR - https://pubmed.ncbi.nlm.nih.gov/3574760/ ID - 3574760 ER -