| article html file updated | 9 February 2020 03:45 CET | Update | https://www.mdpi.com/1996-1073/11/1/251 |
| article html file updated | 30 September 2019 02:13 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:48 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:12 CEST | Update | N/A |
| article html file updated | 28 March 2019 17:07 CET | Update | N/A |
| article html file updated | 1 February 2018 14:30 CET | Update | N/A |
| article html file updated | 20 January 2018 09:01 CET | Original file | N/A |
| article xml uploaded. | 20 January 2018 09:00 CET | Update | https://www.mdpi.com/1996-1073/11/1/251/xml |
| article xml uploaded. | 20 January 2018 09:00 CET | Original file | N/A |
| article pdf uploaded. | 20 January 2018 09:00 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/251/pdf |
