| article html file updated | 8 February 2020 05:26 CET | Update | https://www.mdpi.com/1660-3397/15/5/135 |
| article html file updated | 24 September 2019 17:40 CEST | Update | - |
| article html file updated | 3 May 2019 22:50 CEST | Update | - |
| article html file updated | 1 June 2017 04:19 CEST | Update | - |
| article html file updated | 23 May 2017 03:56 CEST | Update | - |
| article html file updated | 9 May 2017 13:55 CEST | Original file | - |
| article xml uploaded. | 9 May 2017 13:54 CEST | Original file | https://www.mdpi.com/1660-3397/15/5/135/xml |
| article pdf uploaded. | 9 May 2017 13:54 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/5/135/pdf |
