no. 3
Topology of vortices
Annales de l'institut Henri Poincaré. Section A, Physique Théorique, Tome 29 (1978) no. 3, pp. 285-303. 
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     author = {von Westenholz, C.},
     title = {Topology of vortices},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {285--303},
     publisher = {Gauthier-Villars},
     volume = {29},
     number = {3},
     year = {1978},
     mrnumber = {519697},
     zbl = {0396.58010},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1978__29_3_285_0/}
}
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von Westenholz, C. Topology of vortices. Annales de l'institut Henri Poincaré. Section A, Physique Théorique, Tome 29 (1978) no. 3, pp. 285-303. http://archive.numdam.org/item/AIHPA_1978__29_3_285_0/

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