| article html file updated | 9 February 2020 08:25 CET | Update | https://www.mdpi.com/2227-9067/5/3/34 |
| article html file updated | 1 October 2019 05:32 CEST | Update | - |
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| article html file updated | 26 March 2018 13:06 CEST | Update | - |
| article html file updated | 2 March 2018 13:44 CET | Original file | - |
| article xml uploaded. | 2 March 2018 13:42 CET | Original file | https://www.mdpi.com/2227-9067/5/3/34/xml |
| article pdf uploaded. | 2 March 2018 13:42 CET | Version of Record | https://www.mdpi.com/2227-9067/5/3/34/pdf |
