| article html file updated | 9 February 2020 08:16 CET | Update | https://www.mdpi.com/2073-4433/9/3/91 |
| article html file updated | 1 October 2019 04:41 CEST | Update | - |
| article html file updated | 1 May 2019 15:00 CEST | Update | - |
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| article html file updated | 26 March 2018 14:57 CEST | Update | - |
| article html file updated | 1 March 2018 11:20 CET | Original file | - |
| article xml uploaded. | 1 March 2018 11:19 CET | Original file | https://www.mdpi.com/2073-4433/9/3/91/xml |
| article pdf uploaded. | 1 March 2018 11:19 CET | Version of Record | https://www.mdpi.com/2073-4433/9/3/91/pdf |
