| article html file updated | 6 February 2020 15:43 CET | Update | https://www.mdpi.com/2076-2607/3/1/1 |
| article html file updated | 7 May 2019 01:26 CEST | Update | - |
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| article html file updated | 18 May 2016 12:24 CEST | Update | - |
| article html file updated | 21 August 2015 07:04 CEST | Update | - |
| article html file updated | 23 March 2015 07:42 CET | Original file | - |
| article xml file uploaded | 23 March 2015 07:42 CET | Original file | https://www.mdpi.com/2076-2607/3/1/1/xml |
| article pdf uploaded. | 4 February 2015 11:24 CET | Version of Record | https://www.mdpi.com/2076-2607/3/1/1/pdf |
