| article html file updated | 7 February 2020 18:48 CET | Update | https://www.mdpi.com/1996-1073/9/12/1000 |
| article html file updated | 22 September 2019 07:42 CEST | Update | N/A |
| article html file updated | 4 May 2019 20:56 CEST | Update | N/A |
| article html file updated | 28 December 2016 08:53 CET | Update | N/A |
| article html file updated | 30 November 2016 04:25 CET | Original file | N/A |
| article xml uploaded. | 30 November 2016 04:24 CET | Original file | https://www.mdpi.com/1996-1073/9/12/1000/xml |
| article pdf uploaded. | 30 November 2016 04:24 CET | Version of Record | https://www.mdpi.com/1996-1073/9/12/1000/pdf |
