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| article html file updated | 26 December 2018 22:57 CET | Update | - |
| article pdf uploaded. | 22 October 2018 11:05 CEST | Updated version of record | https://www.mdpi.com/2076-2607/6/4/109/pdf |
| article xml uploaded. | 22 October 2018 11:05 CEST | Update | https://www.mdpi.com/2076-2607/6/4/109/xml |
| article xml file uploaded | 22 October 2018 11:05 CEST | Update | - |
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| article pdf uploaded. | 20 October 2018 10:29 CEST | Version of Record | https://www.mdpi.com/2076-2607/6/4/109/pdf-vor |
| article xml uploaded. | 20 October 2018 10:29 CEST | Update | - |
| article html file updated | 20 October 2018 10:29 CEST | Original file | - |
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