| article html file updated | 7 February 2020 14:18 CET | Update | https://www.mdpi.com/2075-4434/4/3/21 |
| article html file updated | 22 September 2019 00:09 CEST | Update | - |
| article html file updated | 5 May 2019 05:22 CEST | Update | - |
| article html file updated | 27 March 2019 15:42 CET | Update | - |
| article html file updated | 29 September 2016 09:53 CEST | Update | - |
| article html file updated | 1 September 2016 11:31 CEST | Original file | - |
| article xml uploaded. | 1 September 2016 11:30 CEST | Original file | https://www.mdpi.com/2075-4434/4/3/21/xml |
| article pdf uploaded. | 1 September 2016 11:30 CEST | Version of Record | https://www.mdpi.com/2075-4434/4/3/21/pdf |
