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Vereinsamung : Die Lebenskrise b. Partnerverlust. Psychologisch-soziologische Unters. d. Trauerverhaltens
Parkes, Colin Murray, (1974)
Staying the course : the emotional and social lives of men who do well at work
Weiss, Robert Stuart, (1990)
Learning from strangers : the art and method of qualitative interview studies
Weiss, Robert Stuart, (1994)