| article html file updated | 8 February 2020 01:53 CET | Update | https://www.mdpi.com/2218-2004/5/1/14 |
| article html file updated | 23 September 2019 22:16 CEST | Update | - |
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| article html file updated | 24 March 2017 02:29 CET | Original file | - |
| article xml uploaded. | 24 March 2017 02:28 CET | Update | https://www.mdpi.com/2218-2004/5/1/14/xml |
| article pdf uploaded. | 24 March 2017 02:28 CET | Updated version of record | https://www.mdpi.com/2218-2004/5/1/14/pdf |
| article pdf uploaded. | 21 March 2017 11:00 CET | Version of Record | https://www.mdpi.com/2218-2004/5/1/14/pdf-vor |