Gravitational lensing by transparent Janis–Newman–Winicour naked singularitiesDeyou Chen, Yiqian Chen, Peng Wang, Tianshu Wu and Houwen WuEur. Phys. J. C, 84 6 (2024) 584DOI: https://doi.org/10.1140/epjc/s10052-024-12950-z