| article html file updated | 8 February 2020 03:20 CET | Update | https://www.mdpi.com/2072-6651/9/4/134 |
| article html file updated | 24 September 2019 06:23 CEST | Update | - |
| article html file updated | 4 May 2019 02:41 CEST | Update | - |
| article html file updated | 28 April 2017 11:16 CEST | Update | - |
| article html file updated | 14 April 2017 14:37 CEST | Original file | - |
| article xml uploaded. | 14 April 2017 14:36 CEST | Original file | https://www.mdpi.com/2072-6651/9/4/134/xml |
| article pdf uploaded. | 14 April 2017 14:36 CEST | Updated version of record | https://www.mdpi.com/2072-6651/9/4/134/pdf |
| article pdf uploaded. | 11 April 2017 11:42 CEST | Version of Record | https://www.mdpi.com/2072-6651/9/4/134/pdf-vor |
