| article html file updated | 12 February 2020 06:50 CET | Update | https://new.mdpi.com/2223-7747/8/4/107 |
| article html file updated | 8 May 2019 17:54 CEST | Update | - |
| article html file updated | 25 April 2019 12:02 CEST | Original file | - |
| article pdf uploaded. | 25 April 2019 12:00 CEST | Updated version of record | https://new.mdpi.com/2223-7747/8/4/107/pdf |
| article xml uploaded. | 25 April 2019 12:00 CEST | Update | https://new.mdpi.com/2223-7747/8/4/107/xml |
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| article pdf uploaded. | 21 April 2019 11:55 CEST | Version of Record | https://new.mdpi.com/2223-7747/8/4/107/pdf-vor |
| article xml file uploaded | 21 April 2019 11:55 CEST | Original file | - |
