| article html file updated | 8 February 2020 22:50 CET | Update | https://www.mdpi.com/2077-1444/8/12/263 |
| article html file updated | 2 May 2019 11:19 CEST | Update | - |
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| article html file updated | 2 January 2018 15:39 CET | Update | - |
| article html file updated | 1 December 2017 16:46 CET | Original file | - |
| article xml uploaded. | 1 December 2017 16:45 CET | Original file | https://www.mdpi.com/2077-1444/8/12/263/xml |
| article pdf uploaded. | 1 December 2017 16:45 CET | Version of Record | https://www.mdpi.com/2077-1444/8/12/263/pdf |
