@article{GDZPPN002343843, title = {Problem 14}, journal = {Mathematica Scandinavica}, volume = {3}, year = {1955}, pages = {172-172}, url = {http://dml.mathdoc.fr/item/GDZPPN002343843} }
GOODSTEIN, R.L. Problem 14. Mathematica Scandinavica, Tome 3 (1955) p. 172. http://gdmltest.u-ga.fr/item/GDZPPN002343843/