TY - JOUR AU - Orlik, Peter TI - On the ARF Invariant of an Involution JO - Canadian journal of mathematics PY - 1970 SP - 519 EP - 524 VL - 22 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-060-8/ DO - 10.4153/CJM-1970-060-8 ID - 10_4153_CJM_1970_060_8 ER -