| article html file updated | 8 February 2020 23:16 CET | Update | https://www.mdpi.com/2076-393X/5/4/47 |
| article html file updated | 29 September 2019 00:34 CEST | Update | - |
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| article html file updated | 18 April 2019 08:00 CEST | Update | - |
| article html file updated | 2 January 2018 09:58 CET | Update | - |
| article html file updated | 6 December 2017 09:43 CET | Original file | - |
| article xml uploaded. | 6 December 2017 09:41 CET | Original file | https://www.mdpi.com/2076-393X/5/4/47/xml |
| article pdf uploaded. | 6 December 2017 09:41 CET | Version of Record | https://www.mdpi.com/2076-393X/5/4/47/pdf |
