| article html file updated | 8 February 2020 11:03 CET | Update | https://www.mdpi.com/2075-4663/5/3/51 |
| article html file updated | 25 September 2019 23:00 CEST | Update | - |
| article html file updated | 3 May 2019 12:17 CEST | Update | - |
| article html file updated | 30 September 2017 10:09 CEST | Update | - |
| article html file updated | 14 July 2017 14:35 CEST | Update | - |
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| article html file updated | 14 July 2017 14:34 CEST | Original file | - |
| article xml uploaded. | 14 July 2017 14:33 CEST | Original file | https://www.mdpi.com/2075-4663/5/3/51/xml |
| article pdf uploaded. | 14 July 2017 14:33 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/3/51/pdf |
