| article html file updated | 6 February 2020 02:16 CET | Update | https://www.mdpi.com/1420-3049/18/6/6128 |
| article html file updated | 19 September 2019 21:04 CEST | Update | - |
| article html file updated | 8 May 2019 04:50 CEST | Update | - |
| article html file updated | 20 March 2019 22:54 CET | Update | - |
| article html file updated | 17 September 2018 05:22 CEST | Original file | - |
| article pdf uploaded. | 23 May 2013 14:02 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/6128/pdf |
