| article html file updated | 6 February 2020 01:32 CET | Update | https://www.mdpi.com/1420-3049/18/4/4477 |
| article html file updated | 19 September 2019 19:39 CEST | Update | - |
| article html file updated | 8 May 2019 06:13 CEST | Update | - |
| article html file updated | 20 March 2019 21:04 CET | Update | - |
| article html file updated | 17 September 2018 10:40 CEST | Update | - |
| article html file updated | 8 April 2016 12:29 CEST | Original file | - |
| article pdf uploaded. | 22 April 2013 17:54 CEST | Updated version of record | https://www.mdpi.com/1420-3049/18/4/4477/pdf |
| article pdf uploaded. | 16 April 2013 09:58 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/4/4477/pdf-vor |
