| article html file updated | 7 February 2020 23:27 CET | Update | https://www.mdpi.com/1996-1073/10/2/232 |
| article html file updated | 23 September 2019 08:17 CEST | Update | - |
| article html file updated | 4 May 2019 11:07 CEST | Update | - |
| article html file updated | 28 February 2017 10:41 CET | Update | - |
| article html file updated | 15 February 2017 11:12 CET | Original file | - |
| article xml uploaded. | 15 February 2017 11:05 CET | Original file | https://www.mdpi.com/1996-1073/10/2/232/xml |
| article pdf uploaded. | 15 February 2017 11:05 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/2/232/pdf |
| article pdf uploaded. | 15 February 2017 10:55 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/232/pdf-vor |
