TY  - JOUR
AU  - Bean, D. T.
TI  - Solution to a Matroid Problem Posed by D. J. A. Welsh
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 129
EP  - 131
VL  - 12
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-011-x/
DO  - 10.4153/CMB-1969-011-x
ID  - 10_4153_CMB_1969_011_x
ER  -