%0 Journal Article %A Say, Fatih %T First-order general differential equation for multi-level asymptotics at higher levels and recurrence relationship of singulants %J Comptes Rendus. Mathématique %D 2021 %P 1267-1278 %V 359 %N 10 %I Académie des sciences, Paris %U http://www.numdam.org/articles/10.5802/crmath.264/ %R 10.5802/crmath.264 %G en %F CRMATH_2021__359_10_1267_0