| article html file updated | 8 February 2020 02:18 CET | Update | https://www.mdpi.com/2072-4292/9/4/311 |
| article html file updated | 24 September 2019 00:31 CEST | Update | - |
| article html file updated | 4 May 2019 04:56 CEST | Update | - |
| article html file updated | 29 April 2017 05:48 CEST | Update | - |
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| article html file updated | 26 March 2017 22:37 CEST | Update | - |
| article html file updated | 26 March 2017 12:31 CEST | Original file | - |
| article xml uploaded. | 26 March 2017 12:29 CEST | Original file | https://www.mdpi.com/2072-4292/9/4/311/xml |
| article pdf uploaded. | 26 March 2017 12:29 CEST | Version of Record | https://www.mdpi.com/2072-4292/9/4/311/pdf |
