@article{drappeau2018a,
year = {2018},
edition = {},
number = {1},
journal = {Proceedings of the American Mathematical Society},
pages = {61-75},
publisher = {Proceedings of the American Mathematical Society},
school = {},
title = {Sign changes of Kloosterman sums and exceptional characters},
volume = {147},
author = {Drappeau, S and Maynard, JA},
editor = {},
series = {}
}