@article{MM2_1993__79_1_155834,
     author = {Vasile Brinzanescu},
     title = {Neron-Severi group for nonalgebraic elliptic surfaces {I.} {Elliptic} bundle case.},
     journal = {Manuscripta mathematica},
     pages = {187--196},
     publisher = {mathdoc},
     volume = {79},
     number = {1},
     year = {1993},
     zbl = {0847.32032},
     url = {http://geodesic.mathdoc.fr/item/MM2_1993__79_1_155834/}
}