| article html file updated | 9 February 2020 04:53 CET | Update | https://www.mdpi.com/1999-4915/10/2/57 |
| article html file updated | 30 September 2019 08:40 CEST | Update | - |
| article html file updated | 1 May 2019 22:25 CEST | Update | - |
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| article html file updated | 14 March 2018 16:54 CET | Update | - |
| article html file updated | 30 January 2018 13:33 CET | Original file | - |
| article xml uploaded. | 30 January 2018 13:31 CET | Original file | https://www.mdpi.com/1999-4915/10/2/57/xml |
| article pdf uploaded. | 30 January 2018 13:31 CET | Version of Record | https://www.mdpi.com/1999-4915/10/2/57/pdf |
