Gelkop Y., F. Di Mei, S. Frishman, Y. Garcia, Falsi L., G. Perepelitsa, C. Conti, E. DelRe, and A.J. Agranat. 2021. “Hyperbolic optics and superlensing in room-temperature KTN from self-induced k-space topological transitions.” Nature Communications , 12, 7241.