| article html file updated | 8 February 2020 21:42 CET | Update | https://www.mdpi.com/1999-4907/8/11/457 |
| article html file updated | 28 September 2019 14:46 CEST | Update | - |
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| article html file updated | 18 April 2019 11:31 CEST | Update | - |
| article html file updated | 30 November 2017 16:09 CET | Update | - |
| article html file updated | 20 November 2017 11:32 CET | Original file | - |
| article xml uploaded. | 20 November 2017 11:31 CET | Original file | https://www.mdpi.com/1999-4907/8/11/457/xml |
| article pdf uploaded. | 20 November 2017 11:31 CET | Version of Record | https://www.mdpi.com/1999-4907/8/11/457/pdf |
