| article html file updated | 7 February 2020 10:54 CET | Update | https://www.mdpi.com/2073-8994/8/7/57 |
| article html file updated | 21 September 2019 19:59 CEST | Update | - |
| article html file updated | 5 May 2019 11:36 CEST | Update | - |
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| article html file updated | 28 July 2016 09:10 CEST | Update | - |
| article html file updated | 28 June 2016 15:10 CEST | Original file | - |
| article xml uploaded. | 28 June 2016 15:09 CEST | Original file | https://www.mdpi.com/2073-8994/8/7/57/xml |
| article pdf uploaded. | 28 June 2016 15:09 CEST | Version of Record | https://www.mdpi.com/2073-8994/8/7/57/pdf |
