| article html file updated | 9 February 2020 06:46 CET | Update | https://www.mdpi.com/1996-1073/11/2/436 |
| article html file updated | 30 September 2019 20:07 CEST | Update | - |
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| article xml uploaded. | 15 February 2018 09:19 CET | Original file | https://www.mdpi.com/1996-1073/11/2/436/xml |
| article pdf uploaded. | 15 February 2018 09:19 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/436/pdf |
