Jiri KOLENAK, David ULLRICH, Veronika KOLENAKOVA and Daria SEVCIKOVA, ”Generation Y’s Leadership Preferences and Their Influence on Work Performance,” Proceedings of the 36th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-5-7, 4-5 November 2020, Granada, Spain, p 585-595.
Jiri KOLENAK, David ULLRICH, Eva AMBROZOVA and Vratislav POKORNY, “Critical Thinking and Leadership in Industry 4.0 Environment“ Proceedings of the 34th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-3-3, 13-14 November 2019, Madrid, Spain, p. 1826-1836.
David Ullrich, Vratislav Pokorný and Pavel Sládek, “Competencies for Leading People in the Security Environment,” Proceedings of the 31st International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-0-2, 25-26 April 2018, Milan, Italy, p 1722-1730.
David Ullrich, Vratislav Pokorný and Eva Ambrozová, “Leadership, Situational and Systemic Critical Thinking,” Proceedings of the 30th International Business Information Management Association (IBIMA), ISBN: 978-0-9860419-9-0, 8-9 November 2017, Madrid, Spain, p 1323-1332.
David Ullrich and Vratislav Pokorný, “Human Factors and Management Limit Situations,” Proceedings of the 29th International Business Information Management Association (IBIMA), ISBN: 978-0-9860419-7-6, 3-4 May 2017, Vienna, Austria, p. 983-988.
Eva Ambrozová, Jiří Koleňák, David Ullrich, Vratislav Pokorný, “Corporate environment and the abilities required of professional managers,” Proceedings of the 25th International Business Information Management Association (IBIMA), ISBN: 978-0-9860419-4-5, 7-8 May 2015, Amsterdam, Netherlands, p. 753-769.