| article html file updated | 8 February 2020 05:12 CET | Update | https://www.mdpi.com/1996-1073/10/5/641 |
| article html file updated | 24 September 2019 16:26 CEST | Update | - |
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| article html file updated | 6 May 2017 10:07 CEST | Original file | - |
| article xml uploaded. | 6 May 2017 10:06 CEST | Original file | https://www.mdpi.com/1996-1073/10/5/641/xml |
| article pdf uploaded. | 6 May 2017 10:06 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/5/641/pdf |
