Żołądek H. Classification of diffeomorphisms of $\mathbb S^4$ induced by queternionic Riccati equations with periodic coefficients. TMNA [Internet]. 1 czerwiec 2009 [cytowane 22 lipiec 2024];33(2):205-1. Dostępne na: https://apcz.umk.pl/TMNA/article/view/TMNA.2009.014