@article{BSMF_2008__136_1_147_0,
     author = {Brito, Fabiano G. B. and Chac\'on, Pablo M. and Johnson, David L.},
     title = {Unit vector fields on antipodally punctured spheres: big index, big volume},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {147--157},
     year = {2008},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {136},
     number = {1},
     doi = {10.24033/bsmf.2551},
     mrnumber = {2415338},
     zbl = {1158.53023},
     language = {en},
     url = {https://www.numdam.org/articles/10.24033/bsmf.2551/}
}