| article html file updated | 12 February 2020 19:34 CET | Update | https://www.mdpi.com/2227-7099/7/2/55 |
| article html file updated | 5 July 2019 13:34 CEST | Update | N/A |
| article html file updated | 5 July 2019 10:43 CEST | Update | N/A |
| article html file updated | 14 June 2019 05:43 CEST | Original file | N/A |
| article pdf uploaded. | 14 June 2019 05:42 CEST | Updated version of record | https://www.mdpi.com/2227-7099/7/2/55/pdf |
| article xml uploaded. | 14 June 2019 05:42 CEST | Update | https://www.mdpi.com/2227-7099/7/2/55/xml |
| article xml file uploaded | 14 June 2019 05:42 CEST | Update | N/A |
| article pdf uploaded. | 13 June 2019 16:45 CEST | Version of Record | https://www.mdpi.com/2227-7099/7/2/55/pdf-vor |
| article xml file uploaded | 13 June 2019 16:45 CEST | Original file | N/A |
