@article{CML_2012__4_3_A1_0,
     author = {Ignat, Radu},
     title = {Singularities of divergence-free vector fields with values into $S^1$ or $S^2$: {Applications} to micromagnetics},
     journal = {Confluentes Mathematici},
     publisher = {World Scientific Publishing Co Pte Ltd},
     volume = {4},
     number = {3},
     year = {2012},
     doi = {10.1142/S1793744212300012},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1142/S1793744212300012/}
}