| article html file updated | 6 February 2020 00:35 CET | Update | https://www.mdpi.com/1420-3049/18/2/2307 |
| article html file updated | 8 May 2019 08:19 CEST | Update | N/A |
| article html file updated | 20 March 2019 18:45 CET | Update | N/A |
| article html file updated | 12 November 2018 03:37 CET | Original file | N/A |
| article pdf uploaded. | 21 February 2013 15:15 CET | Updated version of record | https://www.mdpi.com/1420-3049/18/2/2307/pdf |
| article pdf uploaded. | 19 February 2013 09:27 CET | Version of Record | https://www.mdpi.com/1420-3049/18/2/2307/pdf-vor |
