| article html file updated | 6 February 2020 11:21 CET | Update | https://www.mdpi.com/2071-1050/6/8/5075 |
| article html file updated | 20 September 2019 11:28 CEST | Update | N/A |
| article html file updated | 7 May 2019 10:00 CEST | Update | N/A |
| article html file updated | 21 March 2019 22:45 CET | Update | N/A |
| article html file updated | 20 August 2015 14:56 CEST | Original file | N/A |
| article pdf uploaded. | 11 August 2014 10:27 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/8/5075/pdf |
