TY - JOUR AU - Schirmer, Helga TI - Fixed Points can Characterise Curves JO - Canadian mathematical bulletin PY - 1978 SP - 207 EP - 211 VL - 21 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-035-0/ DO - 10.4153/CMB-1978-035-0 ID - 10_4153_CMB_1978_035_0 ER -