| article html file updated | 10 February 2020 03:38 CET | Update | https://www.mdpi.com/2227-7080/6/3/69 |
| article html file updated | 6 October 2019 03:45 CEST | Update | - |
| article html file updated | 29 April 2019 21:49 CEST | Update | - |
| article html file updated | 15 April 2019 16:51 CEST | Update | - |
| article html file updated | 31 March 2019 01:56 CET | Update | - |
| article html file updated | 31 July 2018 08:22 CEST | Update | - |
| article html file updated | 30 July 2018 15:33 CEST | Original file | - |
| article pdf uploaded. | 30 July 2018 15:32 CEST | Version of Record | https://www.mdpi.com/2227-7080/6/3/69/pdf |
| article xml uploaded. | 30 July 2018 15:32 CEST | Update | https://www.mdpi.com/2227-7080/6/3/69/xml |
| article xml file uploaded | 30 July 2018 15:32 CEST | Original file | - |
