| article html file updated | 14 February 2020 15:10 CET | Update | https://www.mdpi.com/2220-9964/8/12/552 |
| article html file updated | 31 December 2019 06:30 CET | Update | N/A |
| article html file updated | 19 December 2019 03:38 CET | Original file | N/A |
| article pdf uploaded. | 19 December 2019 03:37 CET | Updated version of record | https://www.mdpi.com/2220-9964/8/12/552/pdf |
| article xml uploaded. | 19 December 2019 03:37 CET | Update | https://www.mdpi.com/2220-9964/8/12/552/xml |
| article xml file uploaded | 19 December 2019 03:37 CET | Update | N/A |
| article pdf uploaded. | 2 December 2019 14:11 CET | Version of Record | https://www.mdpi.com/2220-9964/8/12/552/pdf-vor |
| article xml file uploaded | 2 December 2019 14:11 CET | Original file | N/A |
