@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/