1. Encyclopaedia of Migration (Encyklopedie migrace, in Czech), (online project of 5 departments of UK, Prague, 2017), available at http://encyklopedie.org.
2. Cross-border Migration and Its Implications for the Central European Area, edited by L. Falťan (UNESCO MOST program, Bratislava 2015), 278 p.
3. Eurostat service – Asylum and first time asylum applicants by citizenship, age and sex, update 26. 4. 2017, available at http://ec.europa.eu/eurostat/en/web/products-datasets/-/MIGR_ASYAPPCTZA.
4. M. Patriarca, and A. Chakraborti, arXiv:1305.0768v3 [physics.soc-ph] (2017).
5. S. M. Sze, VLSI Technology (McGraw-Hill Book Co., New York, 1988), 676 p.