@article{TMF_2007_153_3_a0,
     author = {A. M. Semikhatov},
     title = {Toward logarithmic extensions of $\widehat{s\ell}(2)_k$ conformal},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {291--346},
     year = {2007},
     volume = {153},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2007_153_3_a0/}
}