| article html file updated | 7 February 2020 03:14 CET | Update | https://www.mdpi.com/1660-3397/14/1/15 |
| article html file updated | 6 May 2019 02:57 CEST | Update | - |
| article html file updated | 26 March 2019 18:04 CET | Original file | - |
| article pdf uploaded. | 15 January 2016 14:39 CET | Updated version of record | https://www.mdpi.com/1660-3397/14/1/15/pdf |
| article pdf uploaded. | 9 January 2016 05:40 CET | Version of Record | https://www.mdpi.com/1660-3397/14/1/15/pdf-vor |
| article xml uploaded. | 9 January 2016 05:40 CET | Original file | https://www.mdpi.com/1660-3397/14/1/15/xml |
