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| article html file updated | 28 November 2019 05:06 CET | Original file | N/A |
| article pdf uploaded. | 28 November 2019 05:05 CET | Updated version of record | https://www.mdpi.com/2076-3387/9/4/89/pdf |
| article xml uploaded. | 28 November 2019 05:05 CET | Update | https://www.mdpi.com/2076-3387/9/4/89/xml |
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| article pdf uploaded. | 23 November 2019 11:45 CET | Version of Record | https://www.mdpi.com/2076-3387/9/4/89/pdf-vor |
| article xml file uploaded | 23 November 2019 11:45 CET | Original file | N/A |
