@article{GDZPPN002435861, title = {Picard Groups of Singular Affine Curves over a Perfect Fields.}, journal = {Mathematische Zeitschrift}, volume = {199}, year = {1988}, pages = {301-312}, zbl = {0637.14006}, url = {http://dml.mathdoc.fr/item/GDZPPN002435861} }
Wiegand, Roger. Picard Groups of Singular Affine Curves over a Perfect Fields.. Mathematische Zeitschrift, Tome 199 (1988) pp. 301-312. http://gdmltest.u-ga.fr/item/GDZPPN002435861/