William Q. Erickson, Daniel Herden, Jonathan Meddaugh, Mark Roger Sepanski, Isaac Echols, Cordell Hammon, Jorge Marchena-Menendez, Jasmin Mohn, Blanca Radillo-Murguia, Indalecio Ruiz-Bolanos. Klein cordial trees and odd cyclic cordial friendship graphs. Discrete Mathematics, 346(9):113488, September 2023. [doi]
Abstract is missing.