Sustainable business models and small- and medium-sized enterprises – a literature reviewDurst, Susanne; Hammoda, Basel Osama Sayed Ahmed; Nguyen, Diem Hoa; Asl, Moieny MatinSustainable development and engineering economics2021 / p. 54-79 : illhttps://doi.org/10.48554/SDEE.2021.1.4