1.
Hanusa CRH. A Gessel–Viennot-Type Method for Cycle Systems in a Directed Graph. Electron. J. Combin. [Internet]. 2006Apr.4 [cited 2026Apr.12];13(1):#R37. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v13i1r37