| article html file updated | 9 February 2020 04:11 CET | Update | https://www.mdpi.com/2410-3888/3/1/6 |
| article html file updated | 30 September 2019 04:27 CEST | Update | N/A |
| article html file updated | 1 May 2019 23:54 CEST | Update | N/A |
| article html file updated | 17 April 2019 22:26 CEST | Update | N/A |
| article html file updated | 28 March 2019 18:00 CET | Update | N/A |
| article html file updated | 24 January 2018 10:11 CET | Original file | N/A |
| article xml uploaded. | 24 January 2018 10:09 CET | Original file | https://www.mdpi.com/2410-3888/3/1/6/xml |
| article pdf uploaded. | 24 January 2018 10:09 CET | Version of Record | https://www.mdpi.com/2410-3888/3/1/6/pdf |
