Fenille, Marcio Colombo, and Daciberg Lima Gonçalves. “A Function à La Hopf-Whitney That Detects or Not Strong Surjectivity”. Topological Methods in Nonlinear Analysis 67, no. 2 (May 18, 2026): 619–636. Accessed September 11, 2026. https://apcz.umk.pl/TMNA/article/view/72125.