| article html file updated | 29 August 2025 22:43 CEST | Update | https://www.mdpi.com/1996-1073/9/2/112 |
| article html file updated | 16 July 2022 01:47 CEST | Update | N/A |
| article html file updated | 7 February 2020 04:41 CET | Update | N/A |
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| article html file updated | 26 March 2019 20:58 CET | Original file | N/A |
| article pdf uploaded. | 18 February 2016 08:33 CET | Version of Record | https://www.mdpi.com/1996-1073/9/2/112/pdf |
| article xml uploaded. | 18 February 2016 08:33 CET | Original file | https://www.mdpi.com/1996-1073/9/2/112/xml |
