Current switching of resistive states in normal-metal-manganite single-crystal point contactsN. A. Tulina, S. A. Zver'kov, Y. M. Mukovskii and D. A. ShulyatevEurophys. Lett., 56 6 (2001) 836-841DOI: https://doi.org/10.1209/epl/i2001-00595-4