| article html file updated | 8 February 2020 06:31 CET | Update | https://www.mdpi.com/1996-1073/10/6/735 |
| article html file updated | 24 September 2019 23:22 CEST | Update | - |
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| article html file updated | 27 June 2017 10:04 CEST | Update | - |
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| article xml uploaded. | 23 May 2017 14:20 CEST | Original file | https://www.mdpi.com/1996-1073/10/6/735/xml |
| article pdf uploaded. | 23 May 2017 14:20 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/735/pdf |
