| article html file updated | 30 August 2025 10:45 CEST | Update | https://www.mdpi.com/1996-1073/12/1/199 |
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| article html file updated | 9 January 2019 12:52 CET | Original file | - |
| article pdf uploaded. | 9 January 2019 12:51 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/1/199/pdf |
| article xml uploaded. | 9 January 2019 12:51 CET | Update | https://www.mdpi.com/1996-1073/12/1/199/xml |
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| article pdf uploaded. | 8 January 2019 18:00 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/1/199/pdf-vor |
| article pdf uploaded. | 8 January 2019 17:55 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/199/pdf-vor |
| article xml file uploaded | 8 January 2019 17:55 CET | Original file | - |