| article html file updated | 8 February 2020 10:42 CET | Update | https://www.mdpi.com/2223-7747/6/3/29 |
| article html file updated | 25 September 2019 21:06 CEST | Update | - |
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| article html file updated | 30 September 2017 14:26 CEST | Update | - |
| article html file updated | 11 July 2017 11:39 CEST | Original file | - |
| article xml uploaded. | 11 July 2017 11:38 CEST | Update | https://www.mdpi.com/2223-7747/6/3/29/xml |
| article pdf uploaded. | 11 July 2017 11:38 CEST | Version of Record | https://www.mdpi.com/2223-7747/6/3/29/pdf |
