| article html file updated | 8 February 2020 01:38 CET | Update | https://www.mdpi.com/2079-9292/6/1/22 |
| article html file updated | 23 September 2019 20:50 CEST | Update | - |
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| article html file updated | 29 March 2017 10:20 CEST | Update | - |
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| article xml uploaded. | 16 March 2017 15:29 CET | Original file | https://www.mdpi.com/2079-9292/6/1/22/xml |
| article pdf uploaded. | 16 March 2017 15:29 CET | Version of Record | https://www.mdpi.com/2079-9292/6/1/22/pdf |
