Greco L, Iwaniec T, Sbordone C, Stroffolini B. Degree formulas for maps with nonintegrable Jacobian. TMNA [Internet]. 1995 Sep. 1 [cited 2024 Jul. 22];6(1):81-95. Available from: https://apcz.umk.pl/TMNA/article/view/TMNA.1995.033