@article{10_4171_dm_434,
     author = {Volker Bach and S\'ebastien Breteaux and Tim Tzaneteas},
     title = {Minimization of the energy of the nonrelativistic one-electron {Pauli-Fierz} model over quasifree states},
     journal = {Documenta mathematica},
     pages = {1481--1519},
     year = {2013},
     volume = {18},
     doi = {10.4171/dm/434},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/434/}
}