TY  - JOUR
AU  - Duane Randall
TI  - On 4-manifolds and span-related numbers for cat manifolds.
JO  - Manuscripta mathematica
PY  - 1990
SP  - 339
EP  - 352
VL  - 69
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1990__69_1_155565/
ID  - MM2_1990__69_1_155565
ER  -