@article{10_4171_dm_440,
     author = {Giuseppe De Nittis and Max Lein},
     title = {The perturbed {Maxwell} operator as pseudodifferential operator},
     journal = {Documenta mathematica},
     pages = {63--101},
     year = {2014},
     volume = {19},
     doi = {10.4171/dm/440},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/440/}
}