| article html file updated | 8 February 2020 18:55 CET | Update | https://www.mdpi.com/2227-9067/4/10/89 |
| article html file updated | 27 September 2019 21:09 CEST | Update | - |
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| article html file updated | 6 November 2017 07:36 CET | Update | - |
| article html file updated | 19 October 2017 13:35 CEST | Original file | - |
| article xml uploaded. | 19 October 2017 13:34 CEST | Original file | https://www.mdpi.com/2227-9067/4/10/89/xml |
| article pdf uploaded. | 19 October 2017 13:34 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/10/89/pdf |
