| article html file updated | 7 February 2020 14:10 CET | Update | https://www.mdpi.com/1422-0067/17/9/1438 |
| article html file updated | 5 May 2019 05:36 CEST | Update | - |
| article html file updated | 27 March 2019 15:25 CET | Update | - |
| article html file updated | 27 September 2016 06:04 CEST | Update | - |
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| article xml uploaded. | 31 August 2016 10:52 CEST | Original file | https://www.mdpi.com/1422-0067/17/9/1438/xml |
| article pdf uploaded. | 31 August 2016 10:52 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/9/1438/pdf |
