DELINOVÁ, Alena - TILL, Juraj - ŠTOFA, Tomáš. The Significance of Ratings in Business-to-Business Procurement. In Central European Conference in Finance and Economics. International Scientific Conference. Central European Conference in Finance and Economics (CEFE2017) : Proceedings of the 2nd International Scientific Conference : September 20 – 21, 2017, Herľany, Slovak Republic. - Košice : Technical University of Košice, 2017. ISBN 978-80-553-2906-2, pp. 147-153. APVV-15-0511.