@article{GDZPPN002356236, title = {On the postage stamp problem with the three stamp denominations.}, journal = {Mathematica Scandinavica}, volume = {47}, year = {1980}, pages = {29-71}, zbl = {0436.10027}, url = {http://dml.mathdoc.fr/item/GDZPPN002356236} }
Selmer, Ernst S. On the postage stamp problem with the three stamp denominations.. Mathematica Scandinavica, Tome 47 (1980) pp. 29-71. http://gdmltest.u-ga.fr/item/GDZPPN002356236/