| article html file updated | 8 February 2020 06:43 CET | Update | https://www.mdpi.com/1660-3397/15/6/148 |
| article html file updated | 25 September 2019 00:30 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:22 CEST | Update | N/A |
| article html file updated | 27 June 2017 11:32 CEST | Update | N/A |
| article html file updated | 25 May 2017 14:07 CEST | Original file | N/A |
| article xml uploaded. | 25 May 2017 14:05 CEST | Original file | https://www.mdpi.com/1660-3397/15/6/148/xml |
| article pdf uploaded. | 25 May 2017 14:05 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/6/148/pdf |
