| article html file updated | 30 August 2025 04:16 CEST | Update | https://www.mdpi.com/1996-1073/11/6/1440 |
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| article xml uploaded. | 12 June 2018 10:17 CEST | Update | https://www.mdpi.com/1996-1073/11/6/1440/xml |
| article pdf uploaded. | 12 June 2018 10:17 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/6/1440/pdf |
| article html file updated | 4 June 2018 11:08 CEST | Original file | - |
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| article xml file uploaded | 4 June 2018 11:06 CEST | Original file | - |
