@article{AFST_2023_6_32_1_55_0,
     author = {Francisco Nicol\'as and Pierre Py},
     title = {Irrational pencils and {Betti} numbers},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {55--67},
     publisher = {Universit\'e Paul Sabatier, Toulouse},
     volume = {Ser. 6, 32},
     number = {1},
     year = {2023},
     doi = {10.5802/afst.1727},
     language = {en},
     url = {https://afst.centre-mersenne.org/articles/10.5802/afst.1727/}
}