| article html file updated | 7 February 2020 06:56 CET | Update | https://www.mdpi.com/2079-8954/4/2/19 |
| article html file updated | 5 May 2019 19:23 CEST | Update | - |
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| article html file updated | 4 July 2016 11:07 CEST | Update | - |
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| article xml uploaded. | 7 April 2016 09:10 CEST | Original file | https://www.mdpi.com/2079-8954/4/2/19/xml |
| article pdf uploaded. | 7 April 2016 09:10 CEST | Version of Record | https://www.mdpi.com/2079-8954/4/2/19/pdf |
