| article html file updated | 8 February 2020 23:28 CET | Update | https://www.mdpi.com/2075-4701/7/12/548 |
| article html file updated | 29 September 2019 01:42 CEST | Update | N/A |
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| article html file updated | 7 December 2017 16:16 CET | Original file | N/A |
| article xml uploaded. | 7 December 2017 16:15 CET | Original file | https://www.mdpi.com/2075-4701/7/12/548/xml |
| article pdf uploaded. | 7 December 2017 16:15 CET | Version of Record | https://www.mdpi.com/2075-4701/7/12/548/pdf |
