| article html file updated | 9 February 2020 06:23 CET | Update | https://www.mdpi.com/2308-3425/5/1/13 |
| article html file updated | 30 September 2019 17:53 CEST | Update | - |
| article html file updated | 1 May 2019 18:59 CEST | Update | - |
| article html file updated | 17 April 2019 18:14 CEST | Update | - |
| article html file updated | 28 March 2019 22:48 CET | Update | - |
| article html file updated | 27 March 2018 16:19 CEST | Update | - |
| article html file updated | 12 February 2018 07:21 CET | Original file | - |
| article xml uploaded. | 12 February 2018 07:19 CET | Update | https://www.mdpi.com/2308-3425/5/1/13/xml |
| article xml uploaded. | 12 February 2018 07:19 CET | Original file | - |
| article pdf uploaded. | 12 February 2018 07:19 CET | Version of Record | https://www.mdpi.com/2308-3425/5/1/13/pdf |
