| article html file updated | 8 February 2020 11:15 CET | Update | https://www.mdpi.com/2225-1154/5/3/54 |
| article html file updated | 25 September 2019 23:57 CEST | Update | - |
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| article xml uploaded. | 17 July 2017 15:47 CEST | Update | https://www.mdpi.com/2225-1154/5/3/54/xml |
| article pdf uploaded. | 17 July 2017 15:47 CEST | Version of Record | https://www.mdpi.com/2225-1154/5/3/54/pdf |