| article html file updated | 8 February 2020 01:56 CET | Update | https://www.mdpi.com/2075-4701/7/3/104 |
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| article xml uploaded. | 21 March 2017 14:41 CET | Update | https://www.mdpi.com/2075-4701/7/3/104/xml |
| article pdf uploaded. | 21 March 2017 14:41 CET | Version of Record | https://www.mdpi.com/2075-4701/7/3/104/pdf |