PEKER, Sinem; AKTAN, Bora. Clustering in European stock indices in crisis and non-crisis periods. International Scientific Conference “Business and Management”, [S. l.], v. 8, p. 1–7, 2014. DOI: 10.3846/bm.2014.037. Disponível em: https://conferences.vilniustech.lt/index.php/BM/article/view/766. Acesso em: 13 sep. 2026.