| article html file updated | 7 February 2020 21:07 CET | Update | https://www.mdpi.com/2073-4425/8/1/25 |
| article html file updated | 22 September 2019 19:40 CEST | Update | - |
| article html file updated | 4 May 2019 16:05 CEST | Update | - |
| article html file updated | 7 February 2017 12:21 CET | Update | - |
| article html file updated | 10 January 2017 13:51 CET | Original file | - |
| article xml uploaded. | 10 January 2017 13:50 CET | Original file | https://www.mdpi.com/2073-4425/8/1/25/xml |
| article pdf uploaded. | 10 January 2017 13:50 CET | Version of Record | https://www.mdpi.com/2073-4425/8/1/25/pdf |
