@incollection{Khonina12,
author = {S.N. Khonina and N.L. Kazanskiy and V.A. Soifer},
title = {Optical Vortices in a Fiber: Mode Division Multiplexing and Multimode Self-Imaging},
booktitle = {Recent Progress in Optical Fiber Research},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Moh. Yasin and Sulaiman W. Harun and Hamzah Arof},
chapter = {15},
doi = {10.5772/28067},
url = {https://doi.org/10.5772/28067}
}