TY  - JOUR
AU  - Ernst S. Selmer
TI  - On the postage stamp problem with the three stamp denominations.
JO  - Mathematica Scandinavica
PY  - 1980
SP  - 29
EP  - 71
VL  - 47
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1980__47_166712/
ID  - MS2_1980__47_166712
ER  -