1.
Żyliński P. Orthogonal Art Galleries with Holes: A Coloring Proof of Aggarwal’s Theorem. Electron. J. Combin. [Internet]. 2006Mar.7 [cited 2026May4];13(1):#R20. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v13i1r20