Geyer, M [Documentation and control of the change process in group psychotherapy]. [electronic resource] - Psychiatrie, Neurologie, und medizinische Psychologie Dec 1984 - 714-26 p. digital Publication Type: English Abstract; Journal Article ISSN: 0033-2739 Subjects--Topical Terms: Documentation--methodsHumansMental Disorders--psychologyPsychological TestsPsychometricsPsychotherapy, Group--methods