Cardona, Fernanda S. P., and Peter N. S. Wong. “The Relative Reidemeister Numbers of Fiber Map Pairs”. Topological Methods in Nonlinear Analysis 21, no. 1 (March 1, 2003): 131–145. Accessed July 3, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2003.008.