| article html file updated | 8 February 2020 06:05 CET | Update | https://www.mdpi.com/1996-1073/10/5/709 |
| article html file updated | 24 September 2019 21:07 CEST | Update | - |
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| article html file updated | 27 May 2017 03:21 CEST | Update | - |
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| article html file updated | 17 May 2017 17:02 CEST | Original file | - |
| article xml uploaded. | 17 May 2017 17:01 CEST | Original file | https://www.mdpi.com/1996-1073/10/5/709/xml |
| article pdf uploaded. | 17 May 2017 17:01 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/5/709/pdf |
