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| article html file updated | 17 July 2022 04:29 CEST | Update | - |
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| article pdf uploaded. | 22 October 2018 04:58 CEST | Updated version of record | https://www.mdpi.com/1999-4907/9/10/621/pdf |
| article xml uploaded. | 22 October 2018 04:58 CEST | Update | https://www.mdpi.com/1999-4907/9/10/621/xml |
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| article html file updated | 10 October 2018 08:42 CEST | Original file | - |
| article pdf uploaded. | 10 October 2018 08:41 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/10/621/pdf-vor |
| article xml uploaded. | 10 October 2018 08:41 CEST | Update | - |
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