| article html file updated | 7 February 2020 22:47 CET | Update | https://www.mdpi.com/2072-666X/8/2/47 |
| article html file updated | 23 September 2019 04:36 CEST | Update | N/A |
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| article html file updated | 7 February 2017 12:53 CET | Original file | N/A |
| article xml uploaded. | 7 February 2017 12:51 CET | Original file | https://www.mdpi.com/2072-666X/8/2/47/xml |
| article pdf uploaded. | 7 February 2017 12:51 CET | Version of Record | https://www.mdpi.com/2072-666X/8/2/47/pdf |
