@article{MM2_1993__78_4_155799,
     author = {Taoufik Youssefi},
     title = {Inegalite relative des genres.},
     journal = {Manuscripta mathematica},
     pages = {111--128},
     publisher = {mathdoc},
     volume = {78},
     number = {4},
     year = {1993},
     zbl = {0812.14016},
     url = {http://geodesic.mathdoc.fr/item/MM2_1993__78_4_155799/}
}