@article{1077314488, author = {Ciliberto, Ciro}, title = {Canonical surfaces with $p\_g=p\_a=4$ and $K^2=5,\dotsc,10$}, journal = {Duke Math. J.}, volume = {48}, number = {1}, year = {1981}, pages = { 121-157}, language = {en}, url = {http://dml.mathdoc.fr/item/1077314488} }
Ciliberto, Ciro. Canonical surfaces with $p_g=p_a=4$ and $K^2=5,\dotsc,10$. Duke Math. J., Tome 48 (1981) no. 1, pp. 121-157. http://gdmltest.u-ga.fr/item/1077314488/