| article html file updated | 29 August 2025 20:55 CEST | Update | https://www.mdpi.com/2076-393X/2/1/49 |
| article html file updated | 15 July 2022 22:48 CEST | Update | - |
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| article xml file uploaded | 14 January 2015 05:17 CET | Original file | https://www.mdpi.com/2076-393X/2/1/49/xml |
| article pdf uploaded. | 8 January 2014 11:28 CET | Updated version of record | https://www.mdpi.com/2076-393X/2/1/49/pdf |
| article pdf uploaded. | 7 January 2014 15:28 CET | Version of Record | https://www.mdpi.com/2076-393X/2/1/49/pdf-vor |
