LACKO, Roman - HURNÝ, František. Measuring Efficiency of the Company Using Financial Statements. In Trends in application of statistical methods for quality improvement VII. (2017). International scientific conference. Trends in application of statistical methods for quality improvement VII. (2017) : reviewed proceedings of posts and abstracts from an 7. international scientific conference : 3.3.2017, Sosnowiec, Poland. - Košice : Katedra kvantitatívnych metód PHF EU : Katedra informačnej a jazykovej komunikácie PHF EU, 2017. ISBN 978-83-65682-60-4, s. 147 CD-ROM. I-17-103-00.