| article html file updated | 8 February 2020 05:23 CET | Update | https://www.mdpi.com/2073-4360/9/5/168 |
| article html file updated | 24 September 2019 17:29 CEST | Update | - |
| article html file updated | 3 May 2019 22:54 CEST | Update | - |
| article html file updated | 18 March 2019 05:43 CET | Update | - |
| article html file updated | 31 May 2017 10:19 CEST | Update | - |
| article html file updated | 23 May 2017 03:54 CEST | Update | - |
| article html file updated | 9 May 2017 10:55 CEST | Original file | - |
| article xml uploaded. | 9 May 2017 10:54 CEST | Original file | https://www.mdpi.com/2073-4360/9/5/168/xml |
| article pdf uploaded. | 9 May 2017 10:54 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/5/168/pdf |
