| article html file updated | 7 February 2020 07:09 CET | Update | https://www.mdpi.com/2071-1050/8/4/356 |
| article html file updated | 21 September 2019 14:58 CEST | Update | - |
| article html file updated | 5 May 2019 18:52 CEST | Update | - |
| article html file updated | 27 March 2019 01:40 CET | Update | - |
| article html file updated | 29 April 2016 05:54 CEST | Update | - |
| article html file updated | 12 April 2016 11:47 CEST | Original file | - |
| article xml uploaded. | 12 April 2016 11:46 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/356/xml |
| article pdf uploaded. | 12 April 2016 11:46 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/356/pdf |
