@article{ASENS_2017__50_4_995_0,
     author = {Enciso, Alberto and Peralta-Salas, Daniel and Torres de Lizaur, Francisco},
     title = {Knotted structures  in high-energy {Beltrami} fields  on the torus and the sphere},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {995--1016},
     publisher = {Soci\'et\'e Math\'ematique de France. Tous droits r\'eserv\'es},
     volume = {Ser. 4, 50},
     number = {4},
     year = {2017},
     doi = {10.24033/asens.2337},
     mrnumber = {3679619},
     zbl = {1379.35226},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.2337/}
}