Can massless wormholes mimic a Schwarzschild black hole in the strong field lensing? Ramil N. Izmailov, Amrita Bhattacharya, Eduard R. Zhdanov, Alexander A. Potapov and Kamal K. Nandi Eur. Phys. J. Plus, 134 8 (2019) 384 Published online: 09 August 2019 DOI: 10.1140/epjp/i2019-12914-5