| article html file updated | 6 February 2020 00:15 CET | Update | https://www.mdpi.com/1420-3049/18/2/1638 |
| article html file updated | 19 September 2019 17:27 CEST | Update | - |
| article html file updated | 8 May 2019 09:13 CEST | Update | - |
| article html file updated | 20 March 2019 17:51 CET | Update | - |
| article html file updated | 12 November 2018 02:59 CET | Original file | - |
| article pdf uploaded. | 28 January 2013 09:41 CET | Version of Record | https://www.mdpi.com/1420-3049/18/2/1638/pdf |
