| article html file updated | 6 February 2020 02:43 CET | Update | https://www.mdpi.com/1420-3049/18/6/7160 |
| article html file updated | 8 May 2019 03:52 CEST | Update | - |
| article html file updated | 21 March 2019 00:01 CET | Update | - |
| article html file updated | 17 September 2018 06:37 CEST | Update | - |
| article html file updated | 15 April 2016 02:54 CEST | Original file | - |
| article pdf uploaded. | 19 June 2013 15:33 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/7160/pdf |
