| article html file updated | 8 February 2020 22:43 CET | Update | https://www.mdpi.com/2071-1050/9/12/2167 |
| article html file updated | 28 September 2019 21:12 CEST | Update | - |
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| article xml uploaded. | 11 December 2017 10:10 CET | Update | https://www.mdpi.com/2071-1050/9/12/2167/xml |
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| article pdf uploaded. | 11 December 2017 10:10 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2167/pdf |
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