| article html file updated | 9 February 2020 03:07 CET | Update | https://www.mdpi.com/2077-0375/8/1/4 |
| article html file updated | 29 September 2019 22:21 CEST | Update | N/A |
| article html file updated | 2 May 2019 02:07 CEST | Update | N/A |
| article html file updated | 18 April 2019 00:23 CEST | Update | N/A |
| article html file updated | 28 March 2019 15:42 CET | Update | N/A |
| article html file updated | 26 March 2018 17:09 CEST | Update | N/A |
| article html file updated | 15 January 2018 16:29 CET | Update | N/A |
| article xml uploaded. | 15 January 2018 16:27 CET | Update | https://www.mdpi.com/2077-0375/8/1/4/xml |
| article xml uploaded. | 15 January 2018 16:27 CET | Update | N/A |
| article pdf uploaded. | 15 January 2018 16:27 CET | Updated version of record | https://www.mdpi.com/2077-0375/8/1/4/pdf |
| article html file updated | 15 January 2018 16:25 CET | Original file | N/A |
| article xml uploaded. | 15 January 2018 16:23 CET | Update | N/A |
| article xml uploaded. | 15 January 2018 16:23 CET | Original file | N/A |
| article pdf uploaded. | 15 January 2018 16:23 CET | Version of Record | N/A |
