| article html file updated | 9 February 2020 16:24 CET | Update | https://www.mdpi.com/2227-7080/6/2/48 |
| article html file updated | 3 October 2019 06:22 CEST | Update | - |
| article html file updated | 30 April 2019 22:24 CEST | Update | - |
| article html file updated | 16 April 2019 22:53 CEST | Update | - |
| article html file updated | 29 March 2019 21:53 CET | Update | - |
| article html file updated | 26 June 2018 05:07 CEST | Update | - |
| article html file updated | 4 May 2018 13:40 CEST | Original file | - |
| article pdf uploaded. | 4 May 2018 13:39 CEST | Version of Record | https://www.mdpi.com/2227-7080/6/2/48/pdf |
| article xml uploaded. | 4 May 2018 13:39 CEST | Update | https://www.mdpi.com/2227-7080/6/2/48/xml |
| article xml file uploaded | 4 May 2018 13:39 CEST | Original file | - |
