| article html file updated | 8 February 2020 04:07 CET | Update | https://www.mdpi.com/1996-1073/10/4/571 |
| article html file updated | 24 September 2019 10:51 CEST | Update | - |
| article html file updated | 4 May 2019 01:13 CEST | Update | - |
| article html file updated | 28 April 2017 06:29 CEST | Update | - |
| article html file updated | 24 April 2017 03:45 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 03:43 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/571/xml |
| article pdf uploaded. | 24 April 2017 03:43 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/571/pdf |
| article pdf uploaded. | 21 April 2017 15:18 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/571/pdf-vor |
| article pdf uploaded. | 21 April 2017 13:15 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/571/pdf-vor |
