| article html file updated | 12 February 2020 20:20 CET | Update | https://www.mdpi.com/2227-7072/7/2/33 |
| article html file updated | 5 July 2019 22:17 CEST | Update | N/A |
| article html file updated | 22 June 2019 03:22 CEST | Original file | N/A |
| article pdf uploaded. | 22 June 2019 03:21 CEST | Updated version of record | https://www.mdpi.com/2227-7072/7/2/33/pdf |
| article xml uploaded. | 22 June 2019 03:21 CEST | Update | https://www.mdpi.com/2227-7072/7/2/33/xml |
| article xml file uploaded | 22 June 2019 03:21 CEST | Update | N/A |
| article pdf uploaded. | 17 June 2019 17:20 CEST | Version of Record | https://www.mdpi.com/2227-7072/7/2/33/pdf-vor |
| article xml file uploaded | 17 June 2019 17:20 CEST | Original file | N/A |
