| article html file updated | 8 February 2020 15:09 CET | Update | https://www.mdpi.com/2079-9276/6/3/45 |
| article html file updated | 26 September 2019 21:58 CEST | Update | - |
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| article html file updated | 6 October 2017 05:11 CEST | Update | - |
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| article xml uploaded. | 2 September 2017 09:21 CEST | Original file | https://www.mdpi.com/2079-9276/6/3/45/xml |
| article pdf uploaded. | 2 September 2017 09:21 CEST | Version of Record | https://www.mdpi.com/2079-9276/6/3/45/pdf |
