@article{GDZPPN00243623X,
title = {Picard Numbers of Surfaces in 3-Dimensional Weighted Projective Spaces.},
journal = {Mathematische Zeitschrift},
volume = {202},
year = {1989},
pages = {183-190},
zbl = {0686.14041},
url = {http://dml.mathdoc.fr/item/GDZPPN00243623X}
}
Cox, David A. Picard Numbers of Surfaces in 3-Dimensional Weighted Projective Spaces.. Mathematische Zeitschrift, Tome 202 (1989) pp. 183-190. http://gdmltest.u-ga.fr/item/GDZPPN00243623X/