DUBCOVÁ, Gabriela - FOLTÍNOVÁ, Ľubica. Modular Aspects of the Voluntary Sustainability Standards for Managements in Small and Medium-Sized Enterprises. In Circular Economy in the Context of Social Requirements and Market Constraints III. : Proceedings of Scientific Papers. - České Budějovice : Vysoká škola evropských a regionálních studií, 2025. ISBN 978-80-7556-170-1, pp. 22-35. VEGA 1/0120/25 (50%), VEGA 1/0462/23 (50%).