| article html file updated | 6 March 2020 17:41 CET | Update | https://www.mdpi.com/2220-9964/9/2/87 |
| article html file updated | 15 February 2020 07:01 CET | Update | N/A |
| article html file updated | 1 February 2020 12:15 CET | Original file | N/A |
| article pdf uploaded. | 1 February 2020 12:14 CET | Version of Record | https://www.mdpi.com/2220-9964/9/2/87/pdf |
| article xml uploaded. | 1 February 2020 12:14 CET | Update | https://www.mdpi.com/2220-9964/9/2/87/xml |
| article xml file uploaded | 1 February 2020 12:14 CET | Original file | N/A |
