| article html file updated | 9 February 2020 16:30 CET | Update | https://www.mdpi.com/2414-4088/2/2/21 |
| article html file updated | 3 October 2019 07:03 CEST | Update | N/A |
| article html file updated | 30 April 2019 22:11 CEST | Update | N/A |
| article html file updated | 16 April 2019 22:40 CEST | Update | N/A |
| article html file updated | 29 March 2019 22:08 CET | Update | N/A |
| article html file updated | 5 May 2018 12:08 CEST | Original file | N/A |
| article pdf uploaded. | 5 May 2018 12:07 CEST | Version of Record | https://www.mdpi.com/2414-4088/2/2/21/pdf |
| article xml uploaded. | 5 May 2018 12:07 CEST | Update | https://www.mdpi.com/2414-4088/2/2/21/xml |
| article xml file uploaded | 5 May 2018 12:07 CEST | Original file | N/A |
