Guryev, I., Shulika, O., Andrade Lucio, J. A. and Mata Chavez, R. I. (2022) “Field propagation study in ultra-small core photonic crystal fiber beyond the fundamental mode cut-off”, Revista Mexicana de Física, 68(2 Mar-Apr), pp. 021302 1–. doi: 10.31349/RevMexFis.68.021302.