%0 Journal Article %T Determinants and Value Relevance of Voluntary Assurance of Sustainability Reports in a Mandatory Reporting Context: Evidence from Europe %A Vander Bauwhede, Heidi %A Van Cauwenberge, Philippe %J Sustainability %V 14 %N 15 %@ 2071-1050 %D 2022-08-08 %I Multidisciplinary Digital Publishing Institute %~ DeepDyve