| article html file updated | 7 February 2020 23:34 CET | Update | https://www.mdpi.com/1996-1073/10/2/238 |
| article html file updated | 23 September 2019 08:56 CEST | Update | - |
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| article html file updated | 28 February 2017 10:42 CET | Update | - |
| article html file updated | 16 February 2017 13:19 CET | Original file | - |
| article xml uploaded. | 16 February 2017 13:18 CET | Original file | https://www.mdpi.com/1996-1073/10/2/238/xml |
| article pdf uploaded. | 16 February 2017 13:18 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/238/pdf |
