TY  - JOUR
AU  - Sherk, F. A.
AU  - Pabst, Günther
TI  - Indicator Sets, Reguli, and a New Class of Spreads
JO  - Canadian journal of mathematics
PY  - 1977
SP  - 132
EP  - 154
VL  - 29
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-013-6/
DO  - 10.4153/CJM-1977-013-6
ID  - 10_4153_CJM_1977_013_6
ER  -