| article html file updated | 6 February 2020 01:44 CET | Update | https://www.mdpi.com/1420-3049/18/5/4906 |
| article html file updated | 8 May 2019 05:51 CEST | Update | N/A |
| article html file updated | 20 March 2019 21:36 CET | Update | N/A |
| article html file updated | 17 September 2018 10:06 CEST | Original file | N/A |
| article pdf uploaded. | 26 April 2013 17:10 CEST | Updated version of record | https://www.mdpi.com/1420-3049/18/5/4906/pdf |
| article pdf uploaded. | 25 April 2013 10:33 CEST | Version of Record | https://www.mdpi.com/1420-3049/18/5/4906/pdf-vor |
