Hagos EM. The characteristic polynomial of a graph is reconstructible from the characteristic polynomials of its vertex-deleted subgraphs and their complements. Electron. J. Combin. [Internet]. 2000Feb.13 [cited 2026Mar.16];7(1):R12. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v7i1r12