| article html file updated | 6 February 2020 02:21 CET | Update | https://www.mdpi.com/1420-3049/18/6/6269 |
| article html file updated | 19 September 2019 21:14 CEST | Update | - |
| article html file updated | 8 May 2019 04:40 CEST | Update | - |
| article html file updated | 20 March 2019 23:05 CET | Update | - |
| article html file updated | 17 September 2018 05:29 CEST | Original file | - |
| article pdf uploaded. | 30 May 2013 15:49 CEST | Updated version of record | https://www.mdpi.com/1420-3049/18/6/6269/pdf |
| article pdf uploaded. | 28 May 2013 10:53 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/6269/pdf-vor |
