| article html file updated | 9 February 2020 00:46 CET | Update | https://www.mdpi.com/2079-6412/8/1/3 |
| article html file updated | 29 September 2019 09:13 CEST | Update | - |
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| article html file updated | 21 December 2017 12:55 CET | Original file | - |
| article xml uploaded. | 21 December 2017 12:53 CET | Original file | https://www.mdpi.com/2079-6412/8/1/3/xml |
| article pdf uploaded. | 21 December 2017 12:53 CET | Version of Record | https://www.mdpi.com/2079-6412/8/1/3/pdf |
