Cohn H, Pemantle R, Propp J. Generating a Random Sink-free Orientation in Quadratic Time. Electron. J. Combin. [Internet]. 2002Mar.12 [cited 2026May3];9(1):#R10. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v9i1r10