1. A. M. Raigorodskii, Usp. Mat. Nauk 56(1), 107–146 (2001).
2. A. M. Raigorodskii, Linear-Algebraic Method in Combinatorics (MTsNMO, Moscow, 2007) [in Russian].
3. L. A. Szekely, J. Bolyai Math. Soc. 11, 649–666 (2002).
4. P. Brass, W. Moser, and J. Pach, Research Problems in Discrete Geometry (Springer-Verlag, Berlin, 2005).
5. N. G. Moshchevitin and A. M. Raigorodskii, Mat. Zametki 81, 733–744 (2007).