@article{TMF_2009_159_1_a9,
     author = {V. A. Moskalenko and P. Entel and L. A. Dohotaru and R. Citro},
     title = {Diagrammatic theory for {the~Anderson} impurity model: {Stationary} property of the~thermodynamic potential},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {162--173},
     publisher = {mathdoc},
     volume = {159},
     number = {1},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2009_159_1_a9/}
}