| article html file updated | 8 February 2020 02:15 CET | Update | https://www.mdpi.com/1999-4907/8/4/96 |
| article html file updated | 24 September 2019 00:13 CEST | Update | - |
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| article html file updated | 25 March 2017 09:34 CET | Original file | - |
| article pdf uploaded. | 25 March 2017 09:34 CET | Version of Record | https://www.mdpi.com/1999-4907/8/4/96/pdf |
| article xml uploaded. | 25 March 2017 09:33 CET | Original file | https://www.mdpi.com/1999-4907/8/4/96/xml |