1 Subjects: “...Travel guides: eco-tourism...”

2 Subjects: “...slow travel...”

3 Subjects: “...rail travel...”

4 Subjects: “...travel behavior...”

5 Subjects: “...traveling wave...”

6 Subjects: “...travel time...”

7 Subjects: “...travel behaviour...”

8 Subjects: “...travel behavior...”

9 Subjects: “...sustainable travel...”

10 Subjects: “...traveling salesman problem...”

11 Subjects: “...,Homosexuality,Inti-Illimani,Mayan poetry,Travel books,Realism,Fernández de Lizardi,Theory of mini-fiction,East...”

12 Subjects: “...activity-travel patterns...”

13 Subjects: “...travelling salesman problem...”

14 Subjects: “...travelling salesman problem...”

15 “...In his professional journey, travelling through an upcoming field of surgery with apparently...”