| article html file updated | 7 February 2020 23:20 CET | Update | https://www.mdpi.com/1996-1073/10/2/220 |
| article html file updated | 23 September 2019 07:39 CEST | Update | - |
| article html file updated | 4 May 2019 11:22 CEST | Update | - |
| article html file updated | 28 February 2017 10:37 CET | Update | - |
| article html file updated | 15 February 2017 03:53 CET | Update | - |
| article xml uploaded. | 15 February 2017 03:52 CET | Update | https://www.mdpi.com/1996-1073/10/2/220/xml |
| article xml uploaded. | 15 February 2017 03:52 CET | Update | - |
| article pdf uploaded. | 15 February 2017 03:52 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/2/220/pdf |
| article html file updated | 14 February 2017 10:35 CET | Original file | - |
| article xml uploaded. | 14 February 2017 10:33 CET | Original file | - |
| article pdf uploaded. | 14 February 2017 10:33 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/220/pdf-vor |
