| article html file updated | 7 February 2020 20:43 CET | Update | https://www.mdpi.com/2073-4441/9/1/22 |
| article html file updated | 22 September 2019 17:32 CEST | Update | - |
| article html file updated | 4 May 2019 16:56 CEST | Update | - |
| article html file updated | 7 February 2017 04:28 CET | Update | - |
| article html file updated | 3 January 2017 11:45 CET | Original file | - |
| article xml uploaded. | 3 January 2017 11:44 CET | Original file | https://www.mdpi.com/2073-4441/9/1/22/xml |
| article pdf uploaded. | 3 January 2017 11:44 CET | Version of Record | https://www.mdpi.com/2073-4441/9/1/22/pdf |
