| article html file updated | 8 February 2020 03:19 CET | Update | https://www.mdpi.com/1996-1073/10/4/518 |
| article html file updated | 24 September 2019 06:18 CEST | Update | - |
| article html file updated | 4 May 2019 02:42 CEST | Update | - |
| article html file updated | 28 April 2017 06:15 CEST | Update | - |
| article html file updated | 12 April 2017 03:38 CEST | Original file | - |
| article xml uploaded. | 12 April 2017 03:37 CEST | Update | https://www.mdpi.com/1996-1073/10/4/518/xml |
| article pdf uploaded. | 12 April 2017 03:37 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/518/pdf |
| article pdf uploaded. | 11 April 2017 12:17 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/518/pdf-vor |
