| article html file updated | 13 February 2020 05:02 CET | Update | https://www.mdpi.com/2227-9067/6/8/87 |
| article html file updated | 27 August 2019 06:08 CEST | Update | N/A |
| article html file updated | 26 July 2019 10:57 CEST | Original file | N/A |
| article pdf uploaded. | 26 July 2019 10:55 CEST | Updated version of record | https://www.mdpi.com/2227-9067/6/8/87/pdf |
| article xml uploaded. | 26 July 2019 10:55 CEST | Update | https://www.mdpi.com/2227-9067/6/8/87/xml |
| article xml file uploaded | 26 July 2019 10:55 CEST | Update | N/A |
| article pdf uploaded. | 25 July 2019 16:35 CEST | Version of Record | https://www.mdpi.com/2227-9067/6/8/87/pdf-vor |
| article xml file uploaded | 25 July 2019 16:35 CEST | Original file | N/A |
