| article html file updated | 8 February 2020 05:24 CET | Update | https://www.mdpi.com/1996-1073/10/5/657 |
| article html file updated | 24 September 2019 17:32 CEST | Update | - |
| article html file updated | 3 May 2019 22:53 CEST | Update | - |
| article html file updated | 27 May 2017 03:12 CEST | Update | - |
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| article html file updated | 9 May 2017 14:47 CEST | Original file | - |
| article xml uploaded. | 9 May 2017 14:46 CEST | Original file | https://www.mdpi.com/1996-1073/10/5/657/xml |
| article pdf uploaded. | 9 May 2017 14:46 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/5/657/pdf |
