| article html file updated | 7 February 2020 06:31 CET | Update | https://www.mdpi.com/2226-4787/4/2/16 |
| article html file updated | 21 September 2019 14:07 CEST | Update | - |
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| article html file updated | 1 July 2016 12:19 CEST | Update | - |
| article html file updated | 28 March 2016 11:50 CEST | Original file | - |
| article xml uploaded. | 28 March 2016 11:49 CEST | Original file | https://www.mdpi.com/2226-4787/4/2/16/xml |
| article pdf uploaded. | 28 March 2016 11:49 CEST | Version of Record | https://www.mdpi.com/2226-4787/4/2/16/pdf |
