@article{GDZPPN002234246,
title = {Neron-Severi group for nonalgebraic elliptic surfaces I. Elliptic bundle case.},
journal = {Manuscripta mathematica},
volume = {79},
year = {1993},
pages = {187-196},
zbl = {0847.32032},
url = {http://dml.mathdoc.fr/item/GDZPPN002234246}
}
Brinzanescu, Vasile. Neron-Severi group for nonalgebraic elliptic surfaces I. Elliptic bundle case.. Manuscripta mathematica, Tome 79 (1993) pp. 187-196. http://gdmltest.u-ga.fr/item/GDZPPN002234246/