| article html file updated | 12 February 2020 17:48 CET | Update | https://www.mdpi.com/2227-7072/7/2/28 |
| article html file updated | 5 July 2019 22:14 CEST | Update | N/A |
| article html file updated | 5 June 2019 12:00 CEST | Original file | N/A |
| article pdf uploaded. | 5 June 2019 11:59 CEST | Version of Record | https://www.mdpi.com/2227-7072/7/2/28/pdf |
| article xml uploaded. | 5 June 2019 11:59 CEST | Update | https://www.mdpi.com/2227-7072/7/2/28/xml |
| article xml file uploaded | 5 June 2019 11:59 CEST | Original file | N/A |
