| article html file updated | 8 February 2020 02:14 CET | Update | https://www.mdpi.com/2072-6643/9/4/325 |
| article html file updated | 24 September 2019 00:10 CEST | Update | - |
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| article html file updated | 25 March 2017 08:03 CET | Original file | - |
| article xml uploaded. | 25 March 2017 08:02 CET | Original file | https://www.mdpi.com/2072-6643/9/4/325/xml |
| article pdf uploaded. | 25 March 2017 08:02 CET | Version of Record | https://www.mdpi.com/2072-6643/9/4/325/pdf |
