@article{ZNSL_1991_187_a4,
     author = {A. A. Kapaev and A. V. Kitaev},
     title = {The limit transition $\mathbb{P}_2\to\mathbb{P}_1$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {75--87},
     publisher = {mathdoc},
     volume = {187},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1991_187_a4/}
}