Superconductivity in the intermetallic compound Zr5Al4 Z. Sobczak, M. J. Winiarski, W. Xie, R. J. Cava and T. Klimczuk EPL, 127 3 (2019) 37005 Published online: 16 September 2019 DOI: 10.1209/0295-5075/127/37005