| article html file updated | 14 February 2020 15:03 CET | Update | https://www.mdpi.com/2313-0105/5/4/72 |
| article html file updated | 2 December 2019 11:38 CET | Original file | - |
| article pdf uploaded. | 2 December 2019 11:37 CET | Version of Record | https://www.mdpi.com/2313-0105/5/4/72/pdf |
| article xml uploaded. | 2 December 2019 11:37 CET | Update | https://www.mdpi.com/2313-0105/5/4/72/xml |
| article xml file uploaded | 2 December 2019 11:37 CET | Original file | - |
