@article{GDZPPN002308509,
title = {A Direct Proof of a Theorem of Roth.},
journal = {Mathematische Annalen},
volume = {201},
year = {1973},
pages = {1-8},
zbl = {0244.10040},
url = {http://dml.mathdoc.fr/item/GDZPPN002308509}
}
Choi, S.L.G. A Direct Proof of a Theorem of Roth.. Mathematische Annalen, Tome 201 (1973) pp. 1-8. http://gdmltest.u-ga.fr/item/GDZPPN002308509/