| article html file updated | 9 February 2020 10:15 CET | Update | https://www.mdpi.com/2078-2489/9/3/67 |
| article html file updated | 1 May 2019 10:53 CEST | Update | - |
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| article html file updated | 26 March 2018 13:00 CEST | Update | - |
| article html file updated | 18 March 2018 07:21 CET | Original file | - |
| article xml uploaded. | 18 March 2018 07:20 CET | Original file | https://www.mdpi.com/2078-2489/9/3/67/xml |
| article pdf uploaded. | 18 March 2018 07:20 CET | Version of Record | https://www.mdpi.com/2078-2489/9/3/67/pdf |
