| article html file updated | 6 February 2020 02:34 CET | Update | https://www.mdpi.com/1420-3049/18/6/6852 |
| article html file updated | 19 September 2019 21:39 CEST | Update | - |
| article html file updated | 8 May 2019 04:10 CEST | Update | - |
| article html file updated | 20 March 2019 23:39 CET | Update | - |
| article html file updated | 17 September 2018 06:00 CEST | Original file | - |
| article pdf uploaded. | 14 June 2013 16:23 CEST | Updated version of record | https://www.mdpi.com/1420-3049/18/6/6852/pdf |
| article pdf uploaded. | 10 June 2013 11:04 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/6/6852/pdf-vor |
