@article{TMF_2019_198_1_a2,
     author = {S. \`E. Derkachev and V. P. Spiridonov},
     title = {The~$6j$-symbols for the~$SL(2,\mathbb C)$ group},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {32--53},
     publisher = {mathdoc},
     volume = {198},
     number = {1},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2019_198_1_a2/}
}