| article html file updated | 11 February 2020 02:59 CET | Update | https://www.mdpi.com/2075-1702/6/4/64 |
| article html file updated | 11 October 2019 21:58 CEST | Update | - |
| article html file updated | 27 April 2019 19:51 CEST | Update | - |
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| article html file updated | 26 December 2018 03:49 CET | Update | - |
| article html file updated | 18 December 2018 06:38 CET | Update | - |
| article pdf uploaded. | 18 December 2018 06:36 CET | Updated version of record | https://www.mdpi.com/2075-1702/6/4/64/pdf |
| article xml file uploaded | 18 December 2018 06:36 CET | Update | https://www.mdpi.com/2075-1702/6/4/64/xml |
| article html file updated | 13 December 2018 11:07 CET | Original file | - |
| article pdf uploaded. | 13 December 2018 11:05 CET | Version of Record | https://www.mdpi.com/2075-1702/6/4/64/pdf-vor |
| article xml uploaded. | 13 December 2018 11:05 CET | Update | - |
| article xml file uploaded | 13 December 2018 11:05 CET | Original file | - |
