| article html file updated | 9 February 2020 08:45 CET | Update | https://www.mdpi.com/2076-0787/7/1/22 |
| article html file updated | 1 May 2019 14:00 CEST | Update | - |
| article html file updated | 17 April 2019 13:38 CEST | Update | - |
| article html file updated | 29 March 2019 04:14 CET | Update | - |
| article html file updated | 6 March 2018 14:11 CET | Update | - |
| article xml uploaded. | 6 March 2018 14:10 CET | Update | https://www.mdpi.com/2076-0787/7/1/22/xml |
| article pdf uploaded. | 6 March 2018 14:10 CET | Updated version of record | https://www.mdpi.com/2076-0787/7/1/22/pdf |
| article html file updated | 6 March 2018 09:35 CET | Original file | - |
| article pdf uploaded. | 6 March 2018 09:34 CET | Version of Record | https://www.mdpi.com/2076-0787/7/1/22/pdf-vor |
