| article html file updated | 8 February 2020 13:27 CET | Update | https://www.mdpi.com/2072-6643/9/8/871 |
| article html file updated | 26 September 2019 12:37 CEST | Update | - |
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| article html file updated | 1 September 2017 05:11 CEST | Update | - |
| article html file updated | 13 August 2017 08:42 CEST | Original file | - |
| article xml uploaded. | 13 August 2017 08:40 CEST | Original file | https://www.mdpi.com/2072-6643/9/8/871/xml |
| article pdf uploaded. | 13 August 2017 08:40 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/8/871/pdf |
