| article html file updated | 9 February 2020 10:50 CET | Update | https://www.mdpi.com/1422-0067/19/4/946 |
| article html file updated | 1 October 2019 20:59 CEST | Update | - |
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| article html file updated | 22 March 2018 16:24 CET | Original file | - |
| article xml uploaded. | 22 March 2018 16:23 CET | Update | https://www.mdpi.com/1422-0067/19/4/946/xml |
| article pdf uploaded. | 22 March 2018 16:23 CET | Version of Record | https://www.mdpi.com/1422-0067/19/4/946/pdf |
