@article{ZNSL_2018_468_a4,
     author = {P. G. Zograf},
     title = {An explicit formula for {Witten's} $2$-correlators},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {53--57},
     publisher = {mathdoc},
     volume = {468},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2018_468_a4/}
}