| article html file updated | 9 February 2020 08:49 CET | Update | https://www.mdpi.com/1996-1073/11/3/568 |
| article html file updated | 1 October 2019 07:52 CEST | Update | - |
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| article xml uploaded. | 6 March 2018 15:40 CET | Update | https://www.mdpi.com/1996-1073/11/3/568/xml |
| article pdf uploaded. | 6 March 2018 15:40 CET | Version of Record | https://www.mdpi.com/1996-1073/11/3/568/pdf |
