Notes
1 We are grateful to Prof. Ron Smith of Birkbeck University of London, Department of Economics, Mathematics and Statistics.
2 Yasin Ozcoban who is an undergraduate student at Department of Computer Science, Pamukkale University is web developer and programmer of the system.
7 In all restrictions, multiple selections are possible.
8 The structure of the system and the site is changed when needs be. Therefore, to up to fate information can be got from the site.