| article html file updated | 8 February 2020 21:34 CET | Update | https://www.mdpi.com/2218-2004/5/4/47 |
| article html file updated | 28 September 2019 13:54 CEST | Update | - |
| article html file updated | 2 May 2019 14:09 CEST | Update | - |
| article html file updated | 18 April 2019 11:49 CEST | Update | - |
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| article html file updated | 23 November 2017 11:54 CET | Update | - |
| article xml uploaded. | 23 November 2017 11:53 CET | Update | https://www.mdpi.com/2218-2004/5/4/47/xml |
| article pdf uploaded. | 23 November 2017 11:53 CET | Updated version of record | https://www.mdpi.com/2218-2004/5/4/47/pdf |
| article html file updated | 18 November 2017 09:47 CET | Original file | - |
| article xml uploaded. | 18 November 2017 09:46 CET | Original file | - |
| article pdf uploaded. | 18 November 2017 09:46 CET | Version of Record | https://www.mdpi.com/2218-2004/5/4/47/pdf-vor |
