| article html file updated | 12 August 2026 19:22 CEST | Update | https://www.mdpi.com/2072-6643/5/6/1970 |
| article html file updated | 6 February 2020 02:28 CET | Update | N/A |
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| article html file updated | 6 August 2013 15:58 CEST | Original file | N/A |
| article xml file uploaded | 6 August 2013 15:58 CEST | Original file | https://www.mdpi.com/2072-6643/5/6/1970/xml |
| article pdf uploaded. | 4 June 2013 10:02 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/6/1970/pdf |
