| article html file updated | 7 February 2020 21:22 CET | Update | https://www.mdpi.com/2411-5142/2/1/5 |
| article html file updated | 22 September 2019 20:51 CEST | Update | N/A |
| article html file updated | 4 May 2019 15:30 CEST | Update | N/A |
| article html file updated | 13 January 2017 05:36 CET | Original file | N/A |
| article xml uploaded. | 13 January 2017 05:35 CET | Update | https://www.mdpi.com/2411-5142/2/1/5/xml |
| article pdf uploaded. | 13 January 2017 05:35 CET | Updated version of record | https://www.mdpi.com/2411-5142/2/1/5/pdf |
| article xml uploaded. | 13 January 2017 05:31 CET | Original file | N/A |
| article pdf uploaded. | 13 January 2017 05:31 CET | Version of Record | N/A |
