@article{TMF_1997_112_1_a6,
     author = {G. A. Kravtsova and V. A. Smirnov},
     title = {Calculation of three loop {Feynman} graphs by using four-dimensional integration by parts and differential renormalization},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {115--118},
     publisher = {mathdoc},
     volume = {112},
     number = {1},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1997_112_1_a6/}
}