1 Subjects: “...vegetation history...”

2 Subjects: “...vegetation science...”

3 Subjects: “...Vegetation...”

4 Subjects: “...vegetation variation...”

5 Subjects: “...vegetation cover...”

6 Subjects: “...vegetation...”

7 Subjects: “...vegetation survey...”

8 Subjects: “...aquatic vegetation...”

9 Subjects: “...vegetation structure...”

10 Subjects: “...vegetation structure...”

11 Subjects: “...vegetation structure...”