| article html file updated | 8 February 2020 10:57 CET | Update | https://www.mdpi.com/2218-1989/7/3/34 |
| article html file updated | 25 September 2019 22:29 CEST | Update | - |
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| article html file updated | 13 July 2017 15:22 CEST | Original file | - |
| article xml uploaded. | 13 July 2017 15:21 CEST | Original file | https://www.mdpi.com/2218-1989/7/3/34/xml |
| article pdf uploaded. | 13 July 2017 15:21 CEST | Version of Record | https://www.mdpi.com/2218-1989/7/3/34/pdf |
