| article html file updated | 8 February 2020 21:22 CET | Update | https://www.mdpi.com/2079-9292/6/4/98 |
| article html file updated | 28 September 2019 12:40 CEST | Update | - |
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| article html file updated | 21 November 2017 03:35 CET | Update | - |
| article xml uploaded. | 21 November 2017 03:34 CET | Update | https://www.mdpi.com/2079-9292/6/4/98/xml |
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| article pdf uploaded. | 21 November 2017 03:34 CET | Updated version of record | https://www.mdpi.com/2079-9292/6/4/98/pdf |
| article html file updated | 16 November 2017 13:11 CET | Original file | - |
| article xml uploaded. | 16 November 2017 13:10 CET | Update | - |
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