| article html file updated | 8 February 2020 09:22 CET | Update | https://www.mdpi.com/2073-4360/9/7/249 |
| article html file updated | 25 September 2019 14:09 CEST | Update | - |
| article html file updated | 3 May 2019 15:25 CEST | Update | - |
| article html file updated | 15 March 2019 10:12 CET | Update | - |
| article html file updated | 2 August 2017 04:18 CEST | Update | - |
| article html file updated | 28 June 2017 11:11 CEST | Update | - |
| article html file updated | 28 June 2017 04:44 CEST | Update | - |
| article html file updated | 28 June 2017 04:24 CEST | Original file | - |
| article xml uploaded. | 27 June 2017 15:06 CEST | Original file | https://www.mdpi.com/2073-4360/9/7/249/xml |
| article pdf uploaded. | 27 June 2017 15:06 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/7/249/pdf |
