TY - JOUR AU - Takashi Nishimura TI - Kato's chaos created by quadratic mappings associated with spherical orthotomic curves JO - Journal of Singularities PY - 2020 SP - 205 EP - 211 VL - 21 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5427/jsing.2020.21l/ DO - 10.5427/jsing.2020.21l ID - 10_5427_jsing_2020_21l ER -