| article html file updated | 13 August 2026 17:58 CEST | Update | https://www.mdpi.com/1424-8220/15/4/8406 |
| article html file updated | 6 February 2020 17:31 CET | Update | N/A |
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| article xml file uploaded | 12 May 2015 12:27 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8406/xml |
| article pdf uploaded. | 14 April 2015 15:52 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/8406/pdf |
| article pdf uploaded. | 13 April 2015 09:04 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8406/pdf-vor |
