| article html file updated | 6 February 2020 02:44 CET | Update | https://www.mdpi.com/1420-3049/18/6/7271 |
| article html file updated | 19 September 2019 21:58 CEST | Update | - |
| article html file updated | 8 May 2019 03:50 CEST | Update | - |
| article html file updated | 21 March 2019 00:04 CET | Update | - |
| article html file updated | 17 September 2018 06:44 CEST | Update | - |
| article html file updated | 26 April 2016 12:51 CEST | Original file | - |
| article pdf uploaded. | 24 June 2013 09:08 CEST | Updated version of record | https://www.mdpi.com/1420-3049/18/6/7271/pdf |
| article pdf uploaded. | 20 June 2013 11:20 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/7271/pdf-vor |
