| article html file updated | 6 February 2020 07:49 CET | Update | https://www.mdpi.com/2076-2607/2/1/73 |
| article html file updated | 7 May 2019 17:31 CEST | Update | - |
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| article html file updated | 14 November 2014 11:01 CET | Original file | - |
| article xml file uploaded | 14 November 2014 11:01 CET | Original file | https://www.mdpi.com/2076-2607/2/1/73/xml |
| article pdf uploaded. | 10 March 2014 11:30 CET | Version of Record | https://www.mdpi.com/2076-2607/2/1/73/pdf |
