1 Subjects: “...invasion theory...”

2 Subjects: “...dual processing theory...”

3 Subjects: “...collective action theory of logic...”

4 Subjects: “...signalling theory...”

5 Subjects: “...ecological theory...”

6 Subjects: “...social-ecological system theory...”

7 Subjects: “...extreme value theory...”

8 Subjects: “...critical theory...”

9 Subjects: “...density functional theory...”