| article html file updated | 30 August 2025 00:19 CEST | Update | https://www.mdpi.com/2073-4425/8/2/57 |
| article html file updated | 16 July 2022 04:43 CEST | Update | N/A |
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| article xml uploaded. | 13 February 2017 06:58 CET | Original file | https://www.mdpi.com/2073-4425/8/2/57/xml |
| article pdf uploaded. | 13 February 2017 06:58 CET | Updated version of record | https://www.mdpi.com/2073-4425/8/2/57/pdf |
| article pdf uploaded. | 31 January 2017 10:52 CET | Version of Record | https://www.mdpi.com/2073-4425/8/2/57/pdf-vor |
