@article{JEMS_2017_19_5_a1,
     author = {Jean Bourgain and Alex Kontorovich},
     title = {Beyond expansion {II:} low-lying fundamental geodesics},
     journal = {Journal of the European Mathematical Society},
     pages = {1331--1359},
     publisher = {mathdoc},
     volume = {19},
     number = {5},
     year = {2017},
     doi = {10.4171/jems/694},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/694/}
}