| article html file updated | 9 February 2020 08:25 CET | Update | https://www.mdpi.com/2227-7390/6/3/36 |
| article html file updated | 1 October 2019 05:34 CEST | Update | N/A |
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| article xml uploaded. | 2 March 2018 14:50 CET | Original file | https://www.mdpi.com/2227-7390/6/3/36/xml |
| article pdf uploaded. | 2 March 2018 14:50 CET | Version of Record | https://www.mdpi.com/2227-7390/6/3/36/pdf |