@article{SM_1990_67_1_a4,
     author = {Yu. A. Neretin},
     title = {Holomorphic extensions of representations of the~group of the~diffeomorphisms of the~circle},
     journal = {Sbornik. Mathematics},
     pages = {75--97},
     publisher = {mathdoc},
     volume = {67},
     number = {1},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1990_67_1_a4/}
}