@article{FPM_2001_7_4_a13,
     author = {S. A. Tishchenko},
     title = {The largest graphs of diameter $2$ and fixed {Euler} characteristics},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {1203--1225},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2001_7_4_a13/}
}