| article html file updated | 7 February 2020 15:33 CET | Update | https://www.mdpi.com/2075-4450/7/4/48 |
| article html file updated | 22 September 2019 01:38 CEST | Update | - |
| article html file updated | 5 May 2019 03:05 CEST | Update | - |
| article html file updated | 29 December 2016 04:29 CET | Update | - |
| article html file updated | 26 September 2016 11:49 CEST | Original file | - |
| article xml uploaded. | 26 September 2016 11:36 CEST | Update | https://www.mdpi.com/2075-4450/7/4/48/xml |
| article xml uploaded. | 26 September 2016 11:36 CEST | Original file | - |
| article pdf uploaded. | 26 September 2016 11:36 CEST | Version of Record | https://www.mdpi.com/2075-4450/7/4/48/pdf |
