| article html file updated | 10 February 2020 17:30 CET | Update | https://www.mdpi.com/2199-8531/4/4/50 |
| article html file updated | 28 April 2019 16:47 CEST | Update | - |
| article html file updated | 14 April 2019 11:55 CEST | Update | - |
| article html file updated | 1 April 2019 10:40 CEST | Update | - |
| article pdf uploaded. | 23 October 2018 13:37 CEST | Version of Record | https://www.mdpi.com/2199-8531/4/4/50/pdf |
| article xml uploaded. | 23 October 2018 13:37 CEST | Update | https://www.mdpi.com/2199-8531/4/4/50/xml |
| article xml file uploaded | 23 October 2018 13:37 CEST | Original file | - |
| article html file updated | 23 October 2018 13:37 CEST | Original file | - |
