The hard Lefschetz theorem and the topology of semismall maps
Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 35 (2002) no. 5, pp. 759-772.
@article{ASENS_2002_4_35_5_759_0,
     author = {de Cataldo, Mark Andrea A and Migliorini, Luca},
     title = {The hard {Lefschetz} theorem and the topology of semismall maps},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {759--772},
     publisher = {Elsevier},
     volume = {Ser. 4, 35},
     number = {5},
     year = {2002},
     doi = {10.1016/s0012-9593(02)01108-4},
     mrnumber = {1951443},
     zbl = {1021.14004},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/s0012-9593(02)01108-4/}
}
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de Cataldo, Mark Andrea A; Migliorini, Luca. The hard Lefschetz theorem and the topology of semismall maps. Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 35 (2002) no. 5, pp. 759-772. doi : 10.1016/s0012-9593(02)01108-4. http://archive.numdam.org/articles/10.1016/s0012-9593(02)01108-4/

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