| article html file updated | 6 February 2020 07:50 CET | Update | https://www.mdpi.com/1420-3049/19/3/3068 |
| article html file updated | 20 September 2019 06:29 CEST | Update | - |
| article html file updated | 7 May 2019 17:28 CEST | Update | - |
| article html file updated | 21 March 2019 13:42 CET | Update | - |
| article html file updated | 12 September 2018 05:32 CEST | Update | - |
| article html file updated | 19 August 2015 23:20 CEST | Original file | - |
| article pdf uploaded. | 11 March 2014 12:09 CET | Version of Record | https://www.mdpi.com/1420-3049/19/3/3068/pdf |
