| article html file updated | 8 February 2020 02:18 CET | Update | https://www.mdpi.com/2071-1050/9/4/498 |
| article html file updated | 24 September 2019 00:32 CEST | Update | - |
| article html file updated | 4 May 2019 04:55 CEST | Update | - |
| article html file updated | 28 April 2017 10:45 CEST | Update | - |
| article html file updated | 27 March 2017 05:50 CEST | Update | - |
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| article html file updated | 26 March 2017 22:38 CEST | Update | - |
| article html file updated | 26 March 2017 12:39 CEST | Original file | - |
| article xml uploaded. | 26 March 2017 12:38 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/498/xml |
| article pdf uploaded. | 26 March 2017 12:38 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/498/pdf |
