@article{CRMATH_2021__359_10_1267_0,
     author = {Say, Fatih},
     title = {First-order general differential equation for multi-level asymptotics at higher levels and recurrence relationship of singulants},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1267--1278},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {359},
     number = {10},
     year = {2021},
     doi = {10.5802/crmath.264},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/crmath.264/}
}