| article html file updated | 7 February 2020 23:55 CET | Update | https://www.mdpi.com/1996-1073/10/2/259 |
| article html file updated | 23 September 2019 10:55 CEST | Update | - |
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| article html file updated | 28 February 2017 10:47 CET | Update | - |
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| article xml uploaded. | 21 February 2017 14:27 CET | Original file | https://www.mdpi.com/1996-1073/10/2/259/xml |
| article pdf uploaded. | 21 February 2017 14:27 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/259/pdf |
