| article html file updated | 8 February 2020 03:33 CET | Update | https://www.mdpi.com/1422-0067/18/4/823 |
| article html file updated | 24 September 2019 07:28 CEST | Update | - |
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| article html file updated | 2 May 2017 06:08 CEST | Update | - |
| article html file updated | 13 April 2017 14:13 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 14:12 CEST | Update | https://www.mdpi.com/1422-0067/18/4/823/xml |
| article pdf uploaded. | 13 April 2017 14:12 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/823/pdf |
