@article{IM2_2021_85_3_a11,
     author = {D. Sykes and G. Schmalz and V. V. Ezhov},
     title = {On the classification of  $3$-dimensional spherical {Sasakian} manifolds},
     journal = {Izvestiya. Mathematics },
     pages = {518--528},
     publisher = {mathdoc},
     volume = {85},
     number = {3},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2021_85_3_a11/}
}