| article html file updated | 9 February 2020 02:27 CET | Update | https://www.mdpi.com/2079-6374/8/1/5 |
| article html file updated | 2 May 2019 03:30 CEST | Update | - |
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| article html file updated | 27 March 2018 14:26 CEST | Update | - |
| article html file updated | 9 January 2018 15:06 CET | Original file | - |
| article xml uploaded. | 9 January 2018 15:05 CET | Original file | https://www.mdpi.com/2079-6374/8/1/5/xml |
| article pdf uploaded. | 9 January 2018 15:05 CET | Version of Record | https://www.mdpi.com/2079-6374/8/1/5/pdf |
