| article html file updated | 29 August 2025 21:44 CEST | Update | https://www.mdpi.com/1999-5903/7/2/110 |
| article html file updated | 16 July 2022 00:13 CEST | Update | N/A |
| article html file updated | 6 February 2020 18:33 CET | Update | N/A |
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| article html file updated | 26 March 2019 02:25 CET | Original file | N/A |
| article pdf uploaded. | 12 May 2015 15:08 CEST | Version of Record | https://www.mdpi.com/1999-5903/7/2/110/pdf |
