| article html file updated | 9 February 2020 00:02 CET | Update | https://www.mdpi.com/2227-7390/5/4/78 |
| article html file updated | 29 September 2019 04:57 CEST | Update | - |
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| article html file updated | 13 December 2017 17:33 CET | Original file | - |
| article xml uploaded. | 13 December 2017 17:32 CET | Original file | https://www.mdpi.com/2227-7390/5/4/78/xml |
| article pdf uploaded. | 13 December 2017 17:32 CET | Version of Record | https://www.mdpi.com/2227-7390/5/4/78/pdf |
