| article html file updated | 15 February 2020 01:19 CET | Update | https://www.mdpi.com/2077-1312/8/1/31 |
| article html file updated | 5 February 2020 21:12 CET | Update | N/A |
| article html file updated | 9 January 2020 09:17 CET | Original file | N/A |
| article pdf uploaded. | 9 January 2020 09:15 CET | Version of Record | https://www.mdpi.com/2077-1312/8/1/31/pdf |
| article xml uploaded. | 9 January 2020 09:15 CET | Update | https://www.mdpi.com/2077-1312/8/1/31/xml |
| article xml file uploaded | 9 January 2020 09:15 CET | Original file | N/A |
