| article html file updated | 8 February 2020 10:58 CET | Update | https://www.mdpi.com/2073-4441/9/7/518 |
| article html file updated | 25 September 2019 22:34 CEST | Update | - |
| article html file updated | 3 May 2019 12:27 CEST | Update | - |
| article html file updated | 1 August 2017 09:19 CEST | Update | - |
| article html file updated | 13 July 2017 15:49 CEST | Update | - |
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| article xml uploaded. | 13 July 2017 15:46 CEST | Original file | https://www.mdpi.com/2073-4441/9/7/518/xml |
| article pdf uploaded. | 13 July 2017 15:46 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/7/518/pdf |
