@article{SM_2007_198_11_a4,
     author = {V. B. Lazareva and A. M. Shelekhov},
     title = {On triangulations of the plane by pencils of conics},
     journal = {Sbornik. Mathematics},
     pages = {1637--1663},
     publisher = {mathdoc},
     volume = {198},
     number = {11},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2007_198_11_a4/}
}