| article html file updated | 7 February 2020 19:36 CET | Update | https://www.mdpi.com/2079-4991/6/12/240 |
| article html file updated | 22 September 2019 11:26 CEST | Update | - |
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| article html file updated | 30 December 2016 02:04 CET | Update | - |
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| article xml uploaded. | 14 December 2016 10:02 CET | Original file | https://www.mdpi.com/2079-4991/6/12/240/xml |
| article pdf uploaded. | 14 December 2016 10:02 CET | Version of Record | https://www.mdpi.com/2079-4991/6/12/240/pdf |
