| article html file updated | 8 February 2020 05:46 CET | Update | https://www.mdpi.com/1996-1073/10/5/686 |
| article html file updated | 24 September 2019 19:30 CEST | Update | N/A |
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| article html file updated | 13 May 2017 07:06 CEST | Original file | N/A |
| article xml uploaded. | 13 May 2017 07:05 CEST | Original file | https://www.mdpi.com/1996-1073/10/5/686/xml |
| article pdf uploaded. | 13 May 2017 07:05 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/5/686/pdf |
