@article{1191860393,
author = {Mendes Lopes, M. and Pardini, R.},
title = {On the algebraic fundamental group of surfaces with $K^2$\leq$3x$},
journal = {J. Differential Geom.},
volume = {75},
number = {1},
year = {2007},
pages = { 189-199},
language = {en},
url = {http://dml.mathdoc.fr/item/1191860393}
}
Mendes Lopes, M.; Pardini, R. On the algebraic fundamental group of surfaces with $K^2≤3x$. J. Differential Geom., Tome 75 (2007) no. 1, pp. 189-199. http://gdmltest.u-ga.fr/item/1191860393/