| article html file updated | 9 February 2020 16:10 CET | Update | https://www.mdpi.com/2227-9709/5/2/23 |
| article html file updated | 3 October 2019 04:54 CEST | Update | - |
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| article html file updated | 27 June 2018 09:53 CEST | Update | - |
| article html file updated | 3 May 2018 09:36 CEST | Original file | - |
| article pdf uploaded. | 3 May 2018 09:34 CEST | Version of Record | https://www.mdpi.com/2227-9709/5/2/23/pdf |
| article xml uploaded. | 3 May 2018 09:34 CEST | Update | https://www.mdpi.com/2227-9709/5/2/23/xml |
| article xml file uploaded | 3 May 2018 09:34 CEST | Original file | - |
