Engestrom, Y., Engestrom, R. & Vahaaho, T. (1999). When the center does not
hold: The importance of knotworking. In S. Chaiklin, M. Hedegaard & U. J.
Jensen (Eds.),
Activity theory and social practice: Cultural-historical approaches.
Aarhus: Aarhus University Press.
As far as I know, the volume has just come out. For further information,
you may ask Seth Chaiklin, his e-mail is:
seth who-is-at psy.au.dk
or
seth who-is-at pc126.psy.aau.dk
Also, Susanne Bodker is editing a volume on activity theory and information
systems research. Susanne's address is:
bodker who-is-at daimi.aau.dk
Regards,
Yrjo Engestrom