| article html file updated | 8 February 2020 16:33 CET | Update | https://www.mdpi.com/1422-0067/18/9/2004 |
| article html file updated | 27 September 2019 05:31 CEST | Update | - |
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| article xml uploaded. | 19 September 2017 10:50 CEST | Original file | https://www.mdpi.com/1422-0067/18/9/2004/xml |
| article pdf uploaded. | 19 September 2017 10:50 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/9/2004/pdf |
