1 Subjects: “...factorial surveys...”

2 Subjects: “...survey...”

3 Subjects: “...expert survey...”

4 Subjects: “...survey...”

5 Subjects: “...online survey...”

6 Subjects: “...land surveying...”

7 Subjects: “...land surveying...”

8 Subjects: “...questionnaire survey...”

9 Subjects: “...vegetation survey...”

10 Subjects: “...survey...”

11 “... of new hazard models, obtained using different survey techniques. The topic attracted a lot of interest...”