| article html file updated | 8 February 2020 06:57 CET | Update | https://www.mdpi.com/1660-3397/15/6/152 |
| article html file updated | 25 September 2019 01:36 CEST | Update | - |
| article html file updated | 3 May 2019 19:58 CEST | Update | - |
| article html file updated | 27 June 2017 11:32 CEST | Update | - |
| article html file updated | 31 May 2017 13:34 CEST | Original file | - |
| article xml uploaded. | 31 May 2017 13:32 CEST | Update | https://www.mdpi.com/1660-3397/15/6/152/xml |
| article pdf uploaded. | 31 May 2017 13:32 CEST | Updated version of record | https://www.mdpi.com/1660-3397/15/6/152/pdf |
| article pdf uploaded. | 29 May 2017 10:39 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/6/152/pdf-vor |
