| article html file updated | 9 February 2020 13:42 CET | Update | https://www.mdpi.com/2075-163X/8/4/159 |
| article html file updated | 2 October 2019 14:14 CEST | Update | - |
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| article html file updated | 17 April 2018 16:28 CEST | Update | - |
| article xml uploaded. | 17 April 2018 16:26 CEST | Update | https://www.mdpi.com/2075-163X/8/4/159/xml |
| article pdf uploaded. | 17 April 2018 16:26 CEST | Updated version of record | https://www.mdpi.com/2075-163X/8/4/159/pdf |
| article html file updated | 13 April 2018 17:46 CEST | Original file | - |
| article pdf uploaded. | 13 April 2018 17:44 CEST | Version of Record | https://www.mdpi.com/2075-163X/8/4/159/pdf-vor |
