| article html file updated | 30 August 2025 02:38 CEST | Update | https://www.mdpi.com/1996-1073/11/2/439 |
| article html file updated | 16 July 2022 09:18 CEST | Update | N/A |
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| article xml uploaded. | 22 February 2018 11:17 CET | Update | https://www.mdpi.com/1996-1073/11/2/439/xml |
| article pdf uploaded. | 22 February 2018 11:17 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/2/439/pdf |
| article html file updated | 15 February 2018 13:57 CET | Original file | N/A |
| article xml uploaded. | 15 February 2018 13:56 CET | Original file | N/A |
| article pdf uploaded. | 15 February 2018 13:56 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/439/pdf-vor |
