| article html file updated | 11 February 2020 07:34 CET | Update | https://www.mdpi.com/2076-0752/8/1/9 |
| article html file updated | 27 April 2019 09:34 CEST | Update | - |
| article html file updated | 13 April 2019 05:33 CEST | Update | - |
| article html file updated | 3 April 2019 00:09 CEST | Update | - |
| article html file updated | 2 April 2019 11:38 CEST | Update | - |
| article html file updated | 9 January 2019 07:30 CET | Original file | - |
| article pdf uploaded. | 9 January 2019 07:28 CET | Version of Record | https://www.mdpi.com/2076-0752/8/1/9/pdf |
| article xml uploaded. | 9 January 2019 07:28 CET | Update | https://www.mdpi.com/2076-0752/8/1/9/xml |
| article xml file uploaded | 9 January 2019 07:28 CET | Original file | - |
