| article html file updated | 8 February 2020 10:22 CET | Update | https://www.mdpi.com/2226-4787/5/3/38 |
| article html file updated | 25 September 2019 19:25 CEST | Update | - |
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| article html file updated | 30 September 2017 15:41 CEST | Update | - |
| article html file updated | 7 July 2017 11:39 CEST | Original file | - |
| article xml uploaded. | 7 July 2017 11:38 CEST | Original file | https://www.mdpi.com/2226-4787/5/3/38/xml |
| article pdf uploaded. | 7 July 2017 11:38 CEST | Version of Record | https://www.mdpi.com/2226-4787/5/3/38/pdf |
