@article{DOCMA_2013__18__a4,
     author = {Bach, Volker and Breteaux, S\'ebastien},
     title = {Minimization of the energy of the nonrelativistic one-electron {Pauli-Fierz} model over quasifree states},
     journal = {Documenta mathematica},
     pages = {1481--1519},
     publisher = {mathdoc},
     volume = {18},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2013__18__a4/}
}