| article html file updated | 9 February 2020 13:17 CET | Update | https://www.mdpi.com/2079-9721/6/2/25 |
| article html file updated | 2 October 2019 11:35 CEST | Update | - |
| article html file updated | 1 May 2019 04:33 CEST | Update | - |
| article html file updated | 17 April 2019 04:50 CEST | Update | - |
| article html file updated | 29 March 2019 14:27 CET | Update | - |
| article html file updated | 10 April 2018 18:26 CEST | Original file | - |
| article xml uploaded. | 10 April 2018 18:25 CEST | Original file | https://www.mdpi.com/2079-9721/6/2/25/xml |
| article pdf uploaded. | 10 April 2018 18:25 CEST | Version of Record | https://www.mdpi.com/2079-9721/6/2/25/pdf |
