References
- [1] Gabriela Kiryakova, Nadezhda Angelova, Lina Yordanova, “GAMIFICATION IN EDUCATION “.
- [2] K. Arrow, „The Principle of Rationality in Collective Decisions” (1952), apud A. Sen (2002: p. 328)
- [3] Aidan Lyon, Eric Pacui, „The Wisdom of Crowds: Methods of Human Judgement Aggregation”, University of Maryland, College Park.