| article html file updated | 6 February 2020 06:43 CET | Update | https://www.mdpi.com/1420-3049/19/1/911 |
| article html file updated | 7 May 2019 19:49 CEST | Update | - |
| article html file updated | 21 March 2019 11:00 CET | Update | - |
| article html file updated | 12 September 2018 05:15 CEST | Update | - |
| article html file updated | 19 August 2015 17:19 CEST | Original file | - |
| article pdf uploaded. | 14 January 2014 09:58 CET | Version of Record | https://www.mdpi.com/1420-3049/19/1/911/pdf |
