Figures & data
Figure 1. Annual scientific publication.
Figure 2. Country scientific production.
Figure 3. Corresponding authors countries.
Figure 4. Most relevant authors.
Figure 5. Author country and institution.
Figure 6. Collaborative connections among authors.
Figure 7. Core sources by Bradfords Law.
Table 1. The top ten journals with the highest publication rate.
Table 2. The top ten most cited references.
Table 3. Abbreviation table.
Figure 8. Keyword timezone map.
Figure 9. Trend topics.
Figure 10. Cluster of keywords.
Figure 11. Emporal changes in keyword clustering.
