| article html file updated | 6 February 2020 15:31 CET | Update | https://www.mdpi.com/2075-1729/5/1/332 |
| article html file updated | 7 May 2019 01:49 CEST | Update | - |
| article html file updated | 25 March 2019 21:02 CET | Update | - |
| article html file updated | 21 August 2015 06:37 CEST | Update | - |
| article html file updated | 15 February 2015 10:06 CET | Update | - |
| article xml file uploaded | 15 February 2015 10:06 CET | Update | https://www.mdpi.com/2075-1729/5/1/332/xml |
| article html file updated | 6 February 2015 02:26 CET | Update | - |
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| article html file updated | 29 January 2015 07:38 CET | Original file | - |
| article xml file uploaded | 29 January 2015 07:38 CET | Original file | - |
| article pdf uploaded. | 27 January 2015 13:56 CET | Version of Record | https://www.mdpi.com/2075-1729/5/1/332/pdf |
