Haxeltine, Alexander, Bonno Pel, Julia Wittmayer, Adina Dumitru, Rene Kemp, y Flor Avelino. 2017. «Building a Middle-Range Theory of Transformative Social Innovation; Theoretical Pitfalls and Methodological Responses». European Public & Social Innovation Review 2 (1). España:59-77. https://epsir.net/index.php/epsir/article/view/51.