| article html file updated | 9 February 2020 03:13 CET | Update | https://www.mdpi.com/2308-3425/5/1/2 |
| article html file updated | 29 September 2019 22:57 CEST | Update | N/A |
| article html file updated | 2 May 2019 01:57 CEST | Update | N/A |
| article html file updated | 18 April 2019 00:13 CEST | Update | N/A |
| article html file updated | 28 March 2019 15:55 CET | Update | N/A |
| article html file updated | 27 March 2018 16:16 CEST | Update | N/A |
| article html file updated | 16 January 2018 09:28 CET | Original file | N/A |
| article xml uploaded. | 16 January 2018 09:26 CET | Update | https://www.mdpi.com/2308-3425/5/1/2/xml |
| article xml uploaded. | 16 January 2018 09:26 CET | Original file | N/A |
| article pdf uploaded. | 16 January 2018 09:26 CET | Version of Record | https://www.mdpi.com/2308-3425/5/1/2/pdf |
