| article html file updated | 12 August 2026 20:28 CEST | Update | https://www.mdpi.com/2076-328X/3/4/536 |
| article html file updated | 6 February 2020 04:42 CET | Update | N/A |
| article html file updated | 20 September 2019 01:37 CEST | Update | N/A |
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| article html file updated | 26 August 2014 03:57 CEST | Original file | N/A |
| article xml file uploaded | 26 August 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-328X/3/4/536/xml |
| article pdf uploaded. | 9 October 2013 14:24 CEST | Updated version of record | https://www.mdpi.com/2076-328X/3/4/536/pdf |
| article pdf uploaded. | 1 October 2013 10:00 CEST | Version of Record | https://www.mdpi.com/2076-328X/3/4/536/pdf-vor |
