| article html file updated | 9 February 2020 10:19 CET | Update | https://www.mdpi.com/2304-8158/7/3/41 |
| article html file updated | 1 October 2019 18:02 CEST | Update | - |
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| article html file updated | 19 March 2018 07:18 CET | Original file | - |
| article xml uploaded. | 19 March 2018 07:16 CET | Update | https://www.mdpi.com/2304-8158/7/3/41/xml |
| article pdf uploaded. | 19 March 2018 07:16 CET | Version of Record | https://www.mdpi.com/2304-8158/7/3/41/pdf |
