Minna Lakkala Hanni Muukkonen Sami Paavola Kai Hakkarainen Designing Pedagogical Infrastructures in University Courses for Technology-Enhanced Collaborative Inquiry. 33-64 2008 3 Research and Practice in Technology Enhanced Learning 1 http://dx.doi.org/10.1142/S1793206808000446 db/journals/rptel/rptel3.html#LakkalaMPH08