| article html file updated | 8 February 2020 05:26 CET | Update | https://www.mdpi.com/2227-9717/5/2/26 |
| article html file updated | 24 September 2019 17:42 CEST | Update | - |
| article html file updated | 3 May 2019 22:49 CEST | Update | - |
| article html file updated | 29 June 2017 12:50 CEST | Update | - |
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| article html file updated | 9 May 2017 13:49 CEST | Original file | - |
| article xml uploaded. | 9 May 2017 13:47 CEST | Update | https://www.mdpi.com/2227-9717/5/2/26/xml |
| article pdf uploaded. | 9 May 2017 13:47 CEST | Version of Record | https://www.mdpi.com/2227-9717/5/2/26/pdf |
