TY  - JOUR
AU  - Dydak, Jerzy
AU  - Levin, Michael
TI  - Extensions of maps to the projective plane
JO  - Algebraic and Geometric Topology
PY  - 2005
SP  - 1711
EP  - 1718
VL  - 5
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2005.5.1711/
DO  - 10.2140/agt.2005.5.1711
ID  - 10_2140_agt_2005_5_1711
ER  -