@article{TMF_2017_190_3_a1,
     author = {L. V. Bork and A. I. Onischenko},
     title = {Form factors in the~$\mathcal{N}=4$ maximally supersymmetric {Yang--Mills} theory, soft theorems, and integrability},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {391--402},
     publisher = {mathdoc},
     volume = {190},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2017_190_3_a1/}
}