| article html file updated | 8 February 2020 03:08 CET | Update | https://www.mdpi.com/2227-7072/5/2/12 |
| article html file updated | 4 May 2019 03:05 CEST | Update | - |
| article html file updated | 28 June 2017 13:16 CEST | Update | - |
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| article html file updated | 12 April 2017 07:49 CEST | Update | - |
| article html file updated | 7 April 2017 14:37 CEST | Original file | - |
| article xml uploaded. | 7 April 2017 14:36 CEST | Original file | https://www.mdpi.com/2227-7072/5/2/12/xml |
| article pdf uploaded. | 7 April 2017 14:36 CEST | Version of Record | https://www.mdpi.com/2227-7072/5/2/12/pdf |
