| article html file updated | 8 February 2020 08:08 CET | Update | https://www.mdpi.com/2075-4701/7/6/217 |
| article html file updated | 25 September 2019 07:37 CEST | Update | - |
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| article html file updated | 28 June 2017 14:03 CEST | Update | - |
| article html file updated | 13 June 2017 09:20 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 09:18 CEST | Update | https://www.mdpi.com/2075-4701/7/6/217/xml |
| article pdf uploaded. | 13 June 2017 09:18 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/217/pdf |
