| article html file updated | 9 February 2020 02:47 CET | Update | https://www.mdpi.com/2075-4418/8/1/7 |
| article html file updated | 29 September 2019 20:31 CEST | Update | - |
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| article html file updated | 27 March 2018 14:29 CEST | Update | - |
| article html file updated | 12 January 2018 07:47 CET | Original file | - |
| article xml uploaded. | 12 January 2018 07:46 CET | Original file | https://www.mdpi.com/2075-4418/8/1/7/xml |
| article pdf uploaded. | 12 January 2018 07:46 CET | Version of Record | https://www.mdpi.com/2075-4418/8/1/7/pdf |
