| article html file updated | 9 February 2020 10:02 CET | Update | https://www.mdpi.com/1999-4907/9/3/143 |
| article html file updated | 1 October 2019 16:22 CEST | Update | - |
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| article html file updated | 15 March 2018 18:35 CET | Original file | - |
| article xml uploaded. | 15 March 2018 18:34 CET | Original file | https://www.mdpi.com/1999-4907/9/3/143/xml |
| article pdf uploaded. | 15 March 2018 18:34 CET | Version of Record | https://www.mdpi.com/1999-4907/9/3/143/pdf |
