| article html file updated | 8 February 2020 08:31 CET | Update | https://www.mdpi.com/2075-4701/7/6/223 |
| article html file updated | 25 September 2019 09:37 CEST | Update | - |
| article html file updated | 3 May 2019 17:02 CEST | Update | - |
| article html file updated | 28 June 2017 14:05 CEST | Update | - |
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| article xml uploaded. | 16 June 2017 13:31 CEST | Original file | https://www.mdpi.com/2075-4701/7/6/223/xml |
| article pdf uploaded. | 16 June 2017 13:31 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/223/pdf |
