1.
Knutson A, Purbhoo K. Product and Puzzle Formulae for $GL_n$ Belkale-Kumar Coefficients. Electron. J. Combin. [Internet]. 2011Mar.31 [cited 2026Mar.17];18(1):P76. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v18i1p76