@article{10_15781_rvnn_bp52,
     author = {Rupert L. Frank and Michael Loss},
     title = {Existence of optimizers in a {Sobolev} inequality for vector fields},
     journal = {Ars Inveniendi Analytica},
     publisher = {mathdoc},
     year = {2022},
     doi = {10.15781/rvnn-bp52},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.15781/rvnn-bp52/}
}