| article html file updated | 6 February 2020 07:05 CET | Update | https://www.mdpi.com/1420-3049/19/2/1685 |
| article html file updated | 7 May 2019 18:59 CEST | Update | - |
| article html file updated | 21 March 2019 11:56 CET | Update | - |
| article html file updated | 12 September 2018 05:02 CEST | Update | - |
| article html file updated | 19 August 2015 19:31 CEST | Original file | - |
| article pdf uploaded. | 30 January 2014 11:20 CET | Version of Record | https://www.mdpi.com/1420-3049/19/2/1685/pdf |
