| article html file updated | 6 February 2020 16:40 CET | Update | https://www.mdpi.com/2227-7390/3/1/47 |
| article html file updated | 6 May 2019 23:41 CEST | Update | - |
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| article html file updated | 21 August 2015 08:53 CEST | Update | - |
| article html file updated | 20 July 2015 12:39 CEST | Original file | - |
| article xml file uploaded | 20 July 2015 12:39 CEST | Original file | https://www.mdpi.com/2227-7390/3/1/47/xml |
| article pdf uploaded. | 16 March 2015 14:36 CET | Version of Record | https://www.mdpi.com/2227-7390/3/1/47/pdf |
