| article html file updated | 8 February 2020 15:05 CET | Update | https://www.mdpi.com/2077-1444/8/9/177 |
| article html file updated | 26 September 2019 21:30 CEST | Update | - |
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| article html file updated | 30 September 2017 10:05 CEST | Update | - |
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| article xml uploaded. | 1 September 2017 15:24 CEST | Original file | https://www.mdpi.com/2077-1444/8/9/177/xml |
| article pdf uploaded. | 1 September 2017 15:24 CEST | Version of Record | https://www.mdpi.com/2077-1444/8/9/177/pdf |
