1 Subjects: “...knowledge economy (knowledge-based economy)...”

2 Subjects: “...low-carbon economy...”

3 Subjects: “...Development economics and emerging economies / bicssc...”

4 Subjects: “...Development economics and emerging economies / bicssc...”

5 Subjects: “...circular economy...”

6 Subjects: “...circular economy...”

7 Subjects: “...circular economy...”

8 Subjects: “...blue economy...”

9 Subjects: “...blue economy...”

10 Subjects: “...circular economy...”

11 Subjects: “...circular economy...”

12 Subjects: “... economics and emerging economies...”

13 Subjects: “...emerging economy...”

14 Subjects: “...beach economy...”

15 “... help economies make a step towards a secure and sustainable energy future in which renewables will have...”

16 “... the frozen tourism economy is an opportunity to build healthy relations between various groups of tourism...”

17 “... valuable final products. In view of the circular economy concept, microbial fuel cell systems are also...”