| article html file updated | 12 February 2020 19:22 CET | Update | https://www.mdpi.com/2227-7072/7/2/31 |
| article html file updated | 21 October 2019 19:29 CEST | Update | N/A |
| article html file updated | 5 July 2019 22:15 CEST | Update | N/A |
| article html file updated | 13 June 2019 09:32 CEST | Original file | N/A |
| article pdf uploaded. | 13 June 2019 09:30 CEST | Version of Record | https://www.mdpi.com/2227-7072/7/2/31/pdf |
| article xml uploaded. | 13 June 2019 09:30 CEST | Update | https://www.mdpi.com/2227-7072/7/2/31/xml |
| article xml file uploaded | 13 June 2019 09:30 CEST | Original file | N/A |
