@article{BUMI_2012_9_5_2_a8,
     author = {Baldi, Annalisa and Franchi, Bruno},
     title = {Some {Remarks} on {Vector} {Potentials} for {Maxwell's} {Equations} in {Space-Time} {Carnot} {Groups}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {337--355},
     publisher = {mathdoc},
     volume = {Ser. 9, 5},
     number = {2},
     year = {2012},
     zbl = {1254.35229},
     mrnumber = {2977252},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2012_9_5_2_a8/}
}