1 Subjects: “...Agency-Theorie...”

2 Subjects: “...grounded theory...”

3 Subjects: “...theory of planned behavior...”

4 Subjects: “...systems theory...”

5 Subjects: “...trauma theory...”

6 Subjects: “...partitioning theory...”

7 Subjects: “...Schwartz theory of universal values...”

8 Subjects: “...Theory of Planned Behaviour (TPB)...”

9 Subjects: “...grounded theory...”

10 Subjects: “...grounded theory...”

11 Subjects: “...grounded theory...”