| article html file updated | 7 February 2020 11:48 CET | Update | https://www.mdpi.com/1420-3049/21/7/923 |
| article html file updated | 21 September 2019 21:06 CEST | Update | - |
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| article html file updated | 28 July 2016 10:25 CEST | Update | - |
| article html file updated | 16 July 2016 09:43 CEST | Original file | - |
| article xml uploaded. | 16 July 2016 09:42 CEST | Original file | https://www.mdpi.com/1420-3049/21/7/923/xml |
| article pdf uploaded. | 16 July 2016 09:42 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/7/923/pdf |
