| article html file updated | 29 August 2025 20:47 CEST | Update | https://www.mdpi.com/2073-4441/5/4/1533 |
| article html file updated | 15 July 2022 22:35 CEST | Update | N/A |
| article html file updated | 6 February 2020 04:39 CET | Update | N/A |
| article html file updated | 7 May 2019 23:52 CEST | Update | N/A |
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| article html file updated | 17 June 2015 13:33 CEST | Original file | N/A |
| article pdf uploaded. | 7 October 2013 15:39 CEST | Updated version of record | https://www.mdpi.com/2073-4441/5/4/1533/pdf |
| article pdf uploaded. | 30 September 2013 12:38 CEST | Version of Record | https://www.mdpi.com/2073-4441/5/4/1533/pdf-vor |
