@article{GDZPPN002099861,
title = {Polynomial Ring in Two Variables Over a D.V.R.: A Criterion.},
journal = {Inventiones mathematicae},
volume = {74},
year = {1983},
pages = {159-168},
zbl = {0538.13006},
url = {http://dml.mathdoc.fr/item/GDZPPN002099861}
}
Sathaye, A. Polynomial Ring in Two Variables Over a D.V.R.: A Criterion.. Inventiones mathematicae, Tome 74 (1983) pp. 159-168. http://gdmltest.u-ga.fr/item/GDZPPN002099861/