| article html file updated | 9 February 2020 05:39 CET | Update | https://www.mdpi.com/1996-1073/11/2/378 |
| article html file updated | 30 September 2019 13:28 CEST | Update | - |
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| article html file updated | 6 February 2018 11:07 CET | Original file | - |
| article xml uploaded. | 6 February 2018 11:06 CET | Update | https://www.mdpi.com/1996-1073/11/2/378/xml |
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| article xml uploaded. | 6 February 2018 11:06 CET | Original file | - |
| article pdf uploaded. | 6 February 2018 11:06 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/378/pdf |