1 Subjects: “...state support...”

2 Subjects: “...solid-state hydrogen storage...”

3 Subjects: “...channel state information...”

4 Subjects: “...operating state...”

5 Subjects: “...state-owned firms...”

6 Subjects: “...state support measures...”

7 Subjects: “...limit states...”

8 Subjects: “...state-owned companies...”

9 Subjects: “...state ownership...”

10 Subjects: “...Driving-Pressure-State-Impact-Response (DPSIR) model...”