| article html file updated | 12 February 2020 17:51 CET | Update | https://www.mdpi.com/2227-7102/9/2/124 |
| article html file updated | 4 July 2019 18:06 CEST | Update | N/A |
| article html file updated | 5 June 2019 13:33 CEST | Original file | N/A |
| article pdf uploaded. | 5 June 2019 13:31 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/124/pdf |
| article xml uploaded. | 5 June 2019 13:31 CEST | Update | https://www.mdpi.com/2227-7102/9/2/124/xml |
| article xml file uploaded | 5 June 2019 13:31 CEST | Original file | N/A |
