BibTex format
@article{Schindler:2018:1751-8121/aa9faf,
author = {Schindler, ST and Bender, CM},
doi = {1751-8121/aa9faf},
journal = {JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL},
title = {Winding in non-Hermitian systems},
url = {http://dx.doi.org/10.1088/1751-8121/aa9faf},
volume = {51},
year = {2018}
}