| article html file updated | 7 February 2020 05:21 CET | Update | https://www.mdpi.com/2071-1050/8/3/228 |
| article html file updated | 5 May 2019 22:37 CEST | Update | - |
| article html file updated | 26 March 2019 22:23 CET | Update | - |
| article html file updated | 31 March 2016 08:39 CEST | Original file | - |
| article pdf uploaded. | 3 March 2016 08:15 CET | Version of Record | https://www.mdpi.com/2071-1050/8/3/228/pdf |
| article xml uploaded. | 3 March 2016 08:15 CET | Original file | https://www.mdpi.com/2071-1050/8/3/228/xml |
