| article html file updated | 12 February 2020 17:34 CET | Update | https://www.mdpi.com/2224-2708/8/2/33 |
| article html file updated | 21 October 2019 07:54 CEST | Update | - |
| article html file updated | 5 July 2019 13:22 CEST | Update | - |
| article html file updated | 5 July 2019 12:18 CEST | Update | - |
| article html file updated | 4 June 2019 12:03 CEST | Original file | - |
| article pdf uploaded. | 4 June 2019 12:02 CEST | Version of Record | https://www.mdpi.com/2224-2708/8/2/33/pdf |
| article xml uploaded. | 4 June 2019 12:02 CEST | Update | https://www.mdpi.com/2224-2708/8/2/33/xml |
| article xml file uploaded | 4 June 2019 12:02 CEST | Original file | - |
