@article{ZNSL_2012_406_a6,
     author = {A. V. Pastor and O. P. Rodionova},
     title = {Some formulas for the number of gluings},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {117--156},
     year = {2012},
     volume = {406},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_406_a6/}
}