| article html file updated | 9 February 2020 18:15 CET | Update | https://www.mdpi.com/2227-9040/6/2/22 |
| article html file updated | 3 October 2019 18:21 CEST | Update | - |
| article html file updated | 30 April 2019 18:26 CEST | Update | - |
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| article html file updated | 27 June 2018 20:08 CEST | Update | - |
| article html file updated | 19 May 2018 06:21 CEST | Original file | - |
| article pdf uploaded. | 19 May 2018 06:20 CEST | Version of Record | https://www.mdpi.com/2227-9040/6/2/22/pdf |
| article xml uploaded. | 19 May 2018 06:20 CEST | Update | https://www.mdpi.com/2227-9040/6/2/22/xml |
| article xml file uploaded | 19 May 2018 06:20 CEST | Original file | - |
