| article html file updated | 9 February 2020 04:16 CET | Update | https://www.mdpi.com/2411-5134/3/1/7 |
| article html file updated | 30 September 2019 05:02 CEST | Update | - |
| article html file updated | 1 May 2019 23:43 CEST | Update | - |
| article html file updated | 17 April 2019 22:17 CEST | Update | - |
| article html file updated | 28 March 2019 18:11 CET | Update | - |
| article html file updated | 25 January 2018 04:35 CET | Original file | - |
| article xml uploaded. | 25 January 2018 04:34 CET | Update | https://www.mdpi.com/2411-5134/3/1/7/xml |
| article xml uploaded. | 25 January 2018 04:12 CET | Original file | - |
| article pdf uploaded. | 25 January 2018 04:12 CET | Version of Record | https://www.mdpi.com/2411-5134/3/1/7/pdf |
