The impact of collaboration on procedural and conceptual knowledge acquisition in algebra learning. - Dejana Diziol (CSCL, 2007)

Orchestrating learning activities on the social and the cognitive level to foster CSCL. - Armin Weinberger; Douglas B. Clark; Pierre Dillenbourg; Dejana Diziol; Victor D. Sampson; Karsten Stegmann; Nikol Rummel; Fabrice Hong; Hans Spada; Bruce M. McLaren; Taiga Brahm; Frank Fischer 001 (CSCL, 2007)

Using contrasting cases to relate collaborative processes and outcomes in CSCL. - Nikol Rummel; Cindy E. Hmelo-Silver; Armin Weinberger; Karsten Stegmann; Frank Fischer 001; Dejana Diziol; George Kahrimanis; Talia Guevara; Johannes Holz; Hans Spada; Georgios Fiotakis; Heisawn Jeong; et al. (ICLS (3), 2008)

Procedural and conceptual knowledge acquisition in mathematics: where is collaboration helpful? - Dejana Diziol; Nikol Rummel; Hans Spada (CSCL (1), 2009)

Learning in mathematics: effects of procedural and conceptual instruction on the quality of student interaction. - Dejana Diziol; Nikol Rummel; Hans Spada; Stephanie Haug (ICLS, 2010)