| article html file updated | 6 February 2020 16:23 CET | Update | https://www.mdpi.com/2227-7390/3/1/29 |
| article html file updated | 20 September 2019 18:35 CEST | Update | N/A |
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| article html file updated | 25 March 2019 22:35 CET | Update | N/A |
| article html file updated | 21 August 2015 08:22 CEST | Update | N/A |
| article html file updated | 20 July 2015 12:39 CEST | Original file | N/A |
| article xml file uploaded | 20 July 2015 12:39 CEST | Original file | https://www.mdpi.com/2227-7390/3/1/29/xml |
| article pdf uploaded. | 6 March 2015 14:57 CET | Version of Record | https://www.mdpi.com/2227-7390/3/1/29/pdf |
