| article html file updated | 11 February 2020 21:18 CET | Update | https://www.mdpi.com/2227-7099/7/1/18 |
| article html file updated | 26 April 2019 05:07 CEST | Update | - |
| article html file updated | 12 April 2019 00:16 CEST | Update | - |
| article html file updated | 10 April 2019 15:29 CEST | Update | - |
| article html file updated | 4 April 2019 10:51 CEST | Update | - |
| article html file updated | 11 March 2019 07:44 CET | Original file | - |
| article pdf uploaded. | 11 March 2019 07:43 CET | Version of Record | https://www.mdpi.com/2227-7099/7/1/18/pdf |
| article xml uploaded. | 11 March 2019 07:43 CET | Update | https://www.mdpi.com/2227-7099/7/1/18/xml |
| article xml file uploaded | 11 March 2019 07:43 CET | Original file | - |
