Srinivasan, Murali K. “The Goldman-Rota Identity and the Grassmann Scheme”. The Electronic Journal of Combinatorics 21, no. 1 (February 21, 2014): P1.37. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v21i1p37.