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2. Ahlin, G. (1994). Manual for the use of Matrix Representation Grid, MRG. 2. Unveröff.
3. Ahlin, G. (1995a). The Interpersonal World of the Infant and the Foundation Matrix of the Groups and Networks of the Person. Group Analysis, 28, 5–20.
4. Ahlin, G. (1995b). Matrix Representation Grid, MRG, version 2 — revision of a group therapy observation instrument (unveröff.).
5. Ahlin, G., Sandahl, C., Herlitz, K. & Brimberg, I. (1995). Developing the Matrix Representation Grid (MRG) a metod for observing group processes. Findings from time-limited group psychotherapy for alcohol dependent patients. (unveröff.)