| article html file updated | 7 February 2020 21:13 CET | Update | https://www.mdpi.com/2075-4701/7/1/22 |
| article html file updated | 22 September 2019 20:02 CEST | Update | - |
| article html file updated | 4 May 2019 15:52 CEST | Update | - |
| article html file updated | 7 February 2017 09:36 CET | Update | - |
| article html file updated | 11 January 2017 14:52 CET | Original file | - |
| article xml uploaded. | 11 January 2017 14:51 CET | Original file | https://www.mdpi.com/2075-4701/7/1/22/xml |
| article pdf uploaded. | 11 January 2017 14:51 CET | Version of Record | https://www.mdpi.com/2075-4701/7/1/22/pdf |
