| article html file updated | 29 August 2025 21:31 CEST | Update | https://www.mdpi.com/2071-1050/7/2/1900 |
| article html file updated | 15 July 2022 23:51 CEST | Update | - |
| article html file updated | 6 February 2020 15:53 CET | Update | - |
| article html file updated | 20 September 2019 17:51 CEST | Update | - |
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| article html file updated | 21 August 2015 07:26 CEST | Update | - |
| article html file updated | 13 February 2015 08:07 CET | Original file | - |
| article xml file uploaded | 13 February 2015 08:07 CET | Original file | https://www.mdpi.com/2071-1050/7/2/1900/xml |
| article pdf uploaded. | 11 February 2015 11:41 CET | Version of Record | https://www.mdpi.com/2071-1050/7/2/1900/pdf |
