| article html file updated | 8 February 2020 10:35 CET | Update | https://www.mdpi.com/1660-3397/15/7/218 |
| article html file updated | 25 September 2019 20:33 CEST | Update | N/A |
| article html file updated | 3 May 2019 13:09 CEST | Update | N/A |
| article html file updated | 31 July 2017 08:18 CEST | Update | N/A |
| article html file updated | 11 July 2017 14:24 CEST | Original file | N/A |
| article xml uploaded. | 11 July 2017 14:23 CEST | Original file | https://www.mdpi.com/1660-3397/15/7/218/xml |
| article pdf uploaded. | 11 July 2017 14:23 CEST | Updated version of record | https://www.mdpi.com/1660-3397/15/7/218/pdf |
| article pdf uploaded. | 10 July 2017 10:55 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/7/218/pdf-vor |
