| article html file updated | 8 February 2020 08:29 CET | Update | https://www.mdpi.com/2073-4360/9/6/229 |
| article html file updated | 25 September 2019 09:26 CEST | Update | - |
| article html file updated | 3 May 2019 17:06 CEST | Update | - |
| article html file updated | 18 March 2019 06:00 CET | Update | - |
| article html file updated | 28 June 2017 14:24 CEST | Update | - |
| article html file updated | 22 June 2017 14:24 CEST | Update | - |
| article xml uploaded. | 22 June 2017 14:22 CEST | Update | https://www.mdpi.com/2073-4360/9/6/229/xml |
| article pdf uploaded. | 22 June 2017 14:22 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/6/229/pdf |
| article html file updated | 16 June 2017 14:55 CEST | Original file | - |
| article pdf uploaded. | 16 June 2017 14:54 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/6/229/pdf-vor |
