| article html file updated | 8 February 2020 02:16 CET | Update | https://www.mdpi.com/2071-1050/9/4/496 |
| article html file updated | 24 September 2019 00:19 CEST | Update | - |
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| article html file updated | 28 April 2017 10:44 CEST | Update | - |
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| article html file updated | 25 March 2017 22:36 CET | Update | - |
| article html file updated | 25 March 2017 11:12 CET | Original file | - |
| article xml uploaded. | 25 March 2017 11:11 CET | Original file | https://www.mdpi.com/2071-1050/9/4/496/xml |
| article pdf uploaded. | 25 March 2017 11:11 CET | Version of Record | https://www.mdpi.com/2071-1050/9/4/496/pdf |
