@article{GDZPPN002065487,
title = {The fundamental group at infinity of affine surfaces.},
journal = {Commentarii mathematici Helvetici},
volume = {59},
year = {1984},
pages = {459-484},
zbl = {0594.14015},
url = {http://dml.mathdoc.fr/item/GDZPPN002065487}
}
Gurjar, R.V.; Shastri, A.R. The fundamental group at infinity of affine surfaces.. Commentarii mathematici Helvetici, Tome 59 (1984) pp. 459-484. http://gdmltest.u-ga.fr/item/GDZPPN002065487/