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| article html file updated | 10 January 2019 08:47 CET | Original file | N/A |
| article pdf uploaded. | 10 January 2019 08:45 CET | Updated version of record | https://www.mdpi.com/2079-9721/7/1/4/pdf |
| article xml uploaded. | 10 January 2019 08:45 CET | Update | https://www.mdpi.com/2079-9721/7/1/4/xml |
| article xml file uploaded | 10 January 2019 08:45 CET | Update | N/A |
| article pdf uploaded. | 7 January 2019 12:01 CET | Version of Record | https://www.mdpi.com/2079-9721/7/1/4/pdf-vor |
| article xml file uploaded | 7 January 2019 12:01 CET | Original file | N/A |
