“…The question how actors can deal with boundaries in integrative and multifunctional processes has recently gained attention in spatial planning (Bressers, 2010;Opdam, Westerink, Vos, & Vries, 2015;Van Broekhoven et al, 2015;Westerink, 2016;Westerink, Lagendijk, Dühr, Jagt, & Kempenaar, 2013). However, little is known on how actors can best manage boundaries specifically in programmatic approaches for integrated regional development, in contrast to a growing body of literature on how actors manage boundaries in the context of (multifunctional) projects (Van Broekhoven & Boons, in review;Van Broekhoven et al, 2015;Westerink, Opdam, van Rooij, & Steingröver, 2017).…”