TY - GEN AU - Roth, R S AU - Parker, H S AU - Brower, W S AU - Minor, D C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1974-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.74-440 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1974 TI - Alkali oxide-tantalum oxide and alkali oxide-niobium oxide ionic conductors: ER -