| article html file updated | 29 August 2025 20:34 CEST | Update | https://www.mdpi.com/2075-1729/3/1/211 |
| article html file updated | 15 July 2022 22:10 CEST | Update | N/A |
| article html file updated | 6 February 2020 00:40 CET | Update | N/A |
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| article html file updated | 24 July 2014 10:32 CEST | Original file | N/A |
| article xml file uploaded | 24 July 2014 10:32 CEST | Original file | https://www.mdpi.com/2075-1729/3/1/211/xml |
| article pdf uploaded. | 28 February 2013 11:07 CET | Updated version of record | https://www.mdpi.com/2075-1729/3/1/211/pdf |
| article pdf uploaded. | 25 February 2013 09:12 CET | Version of Record | https://www.mdpi.com/2075-1729/3/1/211/pdf-vor |
