Trends in Application of Statistical Methods for Quality Improvement IX. (2019). Trends in Application of Statistical Methods for Quality Improvement IX. (2019) : Reviewed Proceeding of Posts from the 9. International Scientific Conference, 26th-28th November, 2019, (Košice-Rajecké Teplice, Slovakia). Reviewers: Vincent Jakub, Emília Duľová Spišáková. 1st Edition. Košice : Katedra kvantitatívnych metód PHF EU : Katedra informačnej a jazykovej komunikácie PHF EU, 2019. CD-ROM 95 s. ISBN 978-80-225-4676-8.