| article html file updated | 9 February 2020 08:58 CET | Update | https://www.mdpi.com/1996-1073/11/3/581 |
| article html file updated | 1 October 2019 08:44 CEST | Update | N/A |
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| article xml uploaded. | 7 March 2018 17:52 CET | Original file | https://www.mdpi.com/1996-1073/11/3/581/xml |
| article pdf uploaded. | 7 March 2018 17:52 CET | Version of Record | https://www.mdpi.com/1996-1073/11/3/581/pdf |