| article html file updated | 8 February 2020 09:40 CET | Update | https://www.mdpi.com/2223-7747/6/3/25 |
| article html file updated | 25 September 2019 15:45 CEST | Update | - |
| article html file updated | 3 May 2019 14:52 CEST | Update | - |
| article html file updated | 30 September 2017 14:26 CEST | Update | - |
| article html file updated | 30 June 2017 11:51 CEST | Update | - |
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| article xml uploaded. | 30 June 2017 10:12 CEST | Original file | https://www.mdpi.com/2223-7747/6/3/25/xml |
| article pdf uploaded. | 30 June 2017 10:12 CEST | Version of Record | https://www.mdpi.com/2223-7747/6/3/25/pdf |
