| article html file updated | 7 February 2020 18:45 CET | Update | https://www.mdpi.com/2079-4991/6/12/227 |
| article html file updated | 22 September 2019 07:29 CEST | Update | N/A |
| article html file updated | 4 May 2019 21:04 CEST | Update | N/A |
| article html file updated | 30 December 2016 01:59 CET | Update | N/A |
| article html file updated | 29 November 2016 09:13 CET | Original file | N/A |
| article xml uploaded. | 29 November 2016 09:12 CET | Update | https://www.mdpi.com/2079-4991/6/12/227/xml |
| article xml uploaded. | 29 November 2016 09:12 CET | Original file | N/A |
| article pdf uploaded. | 29 November 2016 09:12 CET | Version of Record | https://www.mdpi.com/2079-4991/6/12/227/pdf |
