| article html file updated | 10 February 2020 16:39 CET | Update | https://www.mdpi.com/2409-9287/3/4/31 |
| article html file updated | 28 April 2019 18:32 CEST | Update | - |
| article html file updated | 14 April 2019 13:42 CEST | Update | - |
| article html file updated | 1 April 2019 08:18 CEST | Update | - |
| article pdf uploaded. | 18 October 2018 13:28 CEST | Version of Record | https://www.mdpi.com/2409-9287/3/4/31/pdf |
| article xml uploaded. | 18 October 2018 13:28 CEST | Update | https://www.mdpi.com/2409-9287/3/4/31/xml |
| article xml file uploaded | 18 October 2018 13:28 CEST | Original file | - |
| article html file updated | 18 October 2018 13:27 CEST | Original file | - |
