ZAPŁATA, Sławomir et al. Adjusting the Lens – Quality Management in V4 Countries through Times of Crises. In Scientific Papers of Silesian University of Technology – Organization and Management Series. - Gliwice : Wydawnictwo Politechniki Śląskiej. ISSN 1641-3466, 2024, vol. 51, no. 191, pp. 659-688. Visegrad Fund No. 62310004.