| article html file updated | 9 February 2020 10:44 CET | Update | https://www.mdpi.com/1996-1073/11/4/710 |
| article html file updated | 1 October 2019 20:29 CEST | Update | - |
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| article html file updated | 22 March 2018 02:47 CET | Original file | - |
| article xml uploaded. | 22 March 2018 02:45 CET | Original file | https://www.mdpi.com/1996-1073/11/4/710/xml |
| article pdf uploaded. | 22 March 2018 02:45 CET | Version of Record | https://www.mdpi.com/1996-1073/11/4/710/pdf |
