@article{JEMS_2018_20_6_a0,
     author = {Nicolas Lerner and Toan T. Nguyen and Benjamin Texier},
     title = {The onset of instability in first-order systems},
     journal = {Journal of the European Mathematical Society},
     pages = {1303--1373},
     publisher = {mathdoc},
     volume = {20},
     number = {6},
     year = {2018},
     doi = {10.4171/jems/788},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/788/}
}