Bulk evidence for -wave pairing symmetry in electron-doped infinite-layer cuprate Z. Y. Liu, H. H. Wen, L. Shan, H. P. Yang, X. F. Lu, H. Gao, Min-Seok Park, C. U. Jung and Sung-Ik LeeEurophys. Lett., 69 2 (2005) 263-269DOI: https://doi.org/10.1209/epl/i2003-10315-8