| article html file updated | 10 February 2020 18:50 CET | Update | https://www.mdpi.com/2409-9287/3/4/34 |
| article html file updated | 28 April 2019 13:59 CEST | Update | - |
| article html file updated | 14 April 2019 09:11 CEST | Update | - |
| article html file updated | 1 April 2019 14:31 CEST | Update | - |
| article html file updated | 31 October 2018 11:10 CET | Original file | - |
| article pdf uploaded. | 31 October 2018 11:09 CET | Version of Record | https://www.mdpi.com/2409-9287/3/4/34/pdf |
| article xml uploaded. | 31 October 2018 11:09 CET | Update | https://www.mdpi.com/2409-9287/3/4/34/xml |
| article xml file uploaded | 31 October 2018 11:09 CET | Original file | - |
