1 Subjects: “...Conception...”

2 Subjects: “...mobility concept...”

3 Subjects: “.../ Primary education; Primary level; Pupil; Pupils; Self concept; Teaching climate; Mistake; Arts...”

4 Subjects: “...concept...”

5 Subjects: “...macro-concept...”

6 Subjects: “...concept of landscape...”

7 Subjects: “...future mobility concepts...”

8 Subjects: “...sensor concept...”

9 Subjects: “...concept blending...”

10 Subjects: “...search engine concept...”

11 Subjects: “...evaluation concepts...”

12 Subjects: “...water-reuse concepts...”

13 Subjects: “...marketing concept...”

14 Subjects: “...smart city implementation concept...”

15 Subjects: “...concept of corporate sustainability...”

16 Subjects: “...the Triple Helix Concept...”

17 Subjects: “...concept network analysis...”

18 Subjects: “.../ studies,Economic and non-economic exchange,Byzantine,dynasties,Cultural history,Concepts...”