@article{BUMI_2005_8_8B_1_a4,
     author = {Barletti, Luigi},
     title = {Quantum moment equations for a two-band $k\cdot p$ {Hamiltonian}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {103--121},
     publisher = {mathdoc},
     volume = {Ser. 8, 8B},
     number = {1},
     year = {2005},
     zbl = {1150.81001},
     mrnumber = {2014828},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2005_8_8B_1_a4/}
}