TY - GEN AU - JB. Philipp, C. Hofener, S. Thienhaus, J. Klein, L. Alff, R. Gross T1 - Large two-level magnetoresistance effect in doped manganite grain-boundary junctions CY - PY - 2000 PB - T3 - Physical Review B VL - 62 UR - http://dx.doi.org/10.1103/PhysRevB.62.R9248 SN - 0163-1829