| article html file updated | 7 February 2020 13:03 CET | Update | https://www.mdpi.com/1996-1944/9/8/669 |
| article html file updated | 5 May 2019 07:37 CEST | Update | - |
| article html file updated | 27 March 2019 13:06 CET | Update | - |
| article html file updated | 26 August 2016 07:05 CEST | Update | - |
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| article html file updated | 9 August 2016 10:28 CEST | Original file | - |
| article xml uploaded. | 9 August 2016 10:27 CEST | Original file | https://www.mdpi.com/1996-1944/9/8/669/xml |
| article pdf uploaded. | 9 August 2016 10:27 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/8/669/pdf |
