| article html file updated | 12 August 2026 20:25 CEST | Update | https://www.mdpi.com/2220-9964/2/4/935 |
| article html file updated | 6 February 2020 04:37 CET | Update | N/A |
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| article html file updated | 10 November 2014 07:33 CET | Original file | N/A |
| article xml file uploaded | 10 November 2014 07:33 CET | Original file | https://www.mdpi.com/2220-9964/2/4/935/xml |
| article pdf uploaded. | 10 October 2013 16:11 CEST | Updated version of record | https://www.mdpi.com/2220-9964/2/4/935/pdf |
| article pdf uploaded. | 27 September 2013 14:57 CEST | Version of Record | https://www.mdpi.com/2220-9964/2/4/935/pdf-vor |
