| article html file updated | 14 February 2020 14:38 CET | Update | https://www.mdpi.com/2220-9964/8/12/548 |
| article html file updated | 31 December 2019 06:28 CET | Update | - |
| article html file updated | 30 November 2019 09:59 CET | Original file | - |
| article pdf uploaded. | 30 November 2019 09:57 CET | Version of Record | https://www.mdpi.com/2220-9964/8/12/548/pdf |
| article xml uploaded. | 30 November 2019 09:57 CET | Update | https://www.mdpi.com/2220-9964/8/12/548/xml |
| article xml file uploaded | 30 November 2019 09:57 CET | Original file | - |
