| article html file updated | 8 February 2020 03:07 CET | Update | https://www.mdpi.com/1660-3397/15/4/112 |
| article html file updated | 24 September 2019 05:12 CEST | Update | - |
| article html file updated | 4 May 2019 03:07 CEST | Update | - |
| article html file updated | 28 April 2017 08:23 CEST | Update | - |
| article html file updated | 10 April 2017 04:57 CEST | Original file | - |
| article xml uploaded. | 10 April 2017 04:56 CEST | Original file | https://www.mdpi.com/1660-3397/15/4/112/xml |
| article pdf uploaded. | 10 April 2017 04:56 CEST | Updated version of record | https://www.mdpi.com/1660-3397/15/4/112/pdf |
| article pdf uploaded. | 7 April 2017 15:55 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/4/112/pdf-vor |
