TY - JOUR DA - 1992 DO - 10.1007/BF01193520 LA - eng IS - 6 M2 - 525 PY - 1992 SN - 0003-889X SP - 525-528 T2 - Archiv der Mathematik TI - A bypass of an arrow is sectional UR - https://nbn-resolving.org/urn:nbn:de:0070-bipr-9522 Y2 - 2024-11-22T06:33:42 ER -