%0 Journal Article %T Generalized Littlewood–Richardson coefficients for branching rules of GL$(n)$ and extremal weight crystals %J Algebraic Combinatorics %D 2020 %P 1365-1400 %V 3 %N 6 %I MathOA foundation %U https://doi.org/10.5802/alco.143 %R 10.5802/alco.143 %G en %F ALCO_2020__3_6_1365_0