| article html file updated | 8 February 2020 08:52 CET | Update | https://www.mdpi.com/2079-6374/7/2/22 |
| article html file updated | 25 September 2019 11:27 CEST | Update | - |
| article html file updated | 3 May 2019 16:22 CEST | Update | - |
| article html file updated | 28 June 2017 12:44 CEST | Update | - |
| article html file updated | 21 June 2017 14:31 CEST | Original file | - |
| article xml uploaded. | 21 June 2017 14:30 CEST | Original file | https://www.mdpi.com/2079-6374/7/2/22/xml |
| article pdf uploaded. | 21 June 2017 14:30 CEST | Version of Record | https://www.mdpi.com/2079-6374/7/2/22/pdf |
