| article html file updated | 8 February 2020 08:18 CET | Update | https://www.mdpi.com/2073-4360/9/6/226 |
| article html file updated | 25 September 2019 08:33 CEST | Update | - |
| article html file updated | 3 May 2019 17:26 CEST | Update | - |
| article html file updated | 18 March 2019 05:59 CET | Update | - |
| article html file updated | 28 June 2017 14:23 CEST | Update | - |
| article html file updated | 15 June 2017 13:04 CEST | Original file | - |
| article xml uploaded. | 15 June 2017 13:03 CEST | Update | https://www.mdpi.com/2073-4360/9/6/226/xml |
| article pdf uploaded. | 15 June 2017 13:03 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/6/226/pdf |
| article pdf uploaded. | 14 June 2017 14:17 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/6/226/pdf-vor |
