| article html file updated | 7 February 2020 20:41 CET | Update | https://www.mdpi.com/1996-1073/10/1/44 |
| article html file updated | 22 September 2019 17:21 CEST | Update | - |
| article html file updated | 4 May 2019 17:00 CEST | Update | - |
| article html file updated | 7 February 2017 09:42 CET | Update | - |
| article html file updated | 3 January 2017 07:52 CET | Original file | - |
| article xml uploaded. | 3 January 2017 07:51 CET | Update | https://www.mdpi.com/1996-1073/10/1/44/xml |
| article pdf uploaded. | 3 January 2017 07:51 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/44/pdf |
