TY  - JOUR
AU  - Hans-Joachim Baues
TI  - Secondary cohomology and the Steenrod square
JO  - Homology, homotopy, and applications
PY  - 2002
SP  - 29
EP  - 62
VL  - 4
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4310/HHA.2002.v4.n2.a3/
DO  - 10.4310/HHA.2002.v4.n2.a3
LA  - en
ID  - HHA_2002_4_2_a3
ER  -