@article{TMF_2011_167_2_a1,
     author = {J. Br\"uning and V. V. Grushin and S. Yu. Dobrokhotov and T. Ya. Tudorovskii},
     title = {Generalized {Foldy--Wouthuysen} transformation and pseudodifferential operators},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {171--192},
     publisher = {mathdoc},
     volume = {167},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2011_167_2_a1/}
}