| article html file updated | 12 February 2020 07:55 CET | Update | https://www.mdpi.com/2227-7102/9/2/89 |
| article html file updated | 19 October 2019 01:12 CEST | Update | - |
| article html file updated | 4 July 2019 17:56 CEST | Update | - |
| article html file updated | 26 April 2019 08:03 CEST | Original file | - |
| article pdf uploaded. | 26 April 2019 08:02 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/89/pdf |
| article xml uploaded. | 26 April 2019 08:02 CEST | Update | https://www.mdpi.com/2227-7102/9/2/89/xml |
| article xml file uploaded | 26 April 2019 08:02 CEST | Original file | - |
