| article html file updated | 9 February 2020 09:59 CET | Update | https://www.mdpi.com/2079-6412/8/3/106 |
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| article xml uploaded. | 15 March 2018 16:35 CET | Update | https://www.mdpi.com/2079-6412/8/3/106/xml |
| article pdf uploaded. | 15 March 2018 16:35 CET | Version of Record | https://www.mdpi.com/2079-6412/8/3/106/pdf |