| article html file updated | 11 February 2020 03:47 CET | Update | https://www.mdpi.com/2076-0760/7/12/271 |
| article html file updated | 27 April 2019 17:57 CEST | Update | - |
| article html file updated | 13 April 2019 13:51 CEST | Update | - |
| article html file updated | 2 April 2019 14:55 CEST | Update | - |
| article html file updated | 18 December 2018 07:37 CET | Original file | - |
| article pdf uploaded. | 18 December 2018 07:36 CET | Version of Record | https://www.mdpi.com/2076-0760/7/12/271/pdf |
| article xml uploaded. | 18 December 2018 07:36 CET | Update | https://www.mdpi.com/2076-0760/7/12/271/xml |
| article xml file uploaded | 18 December 2018 07:36 CET | Original file | - |
