| article html file updated | 9 February 2020 03:36 CET | Update | https://www.mdpi.com/2306-7381/5/1/8 |
| article html file updated | 30 September 2019 01:17 CEST | Update | - |
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| article xml uploaded. | 12 February 2018 04:13 CET | Update | https://www.mdpi.com/2306-7381/5/1/8/xml |
| article pdf uploaded. | 12 February 2018 04:13 CET | Updated version of record | https://www.mdpi.com/2306-7381/5/1/8/pdf |
| article html file updated | 19 January 2018 08:35 CET | Original file | - |
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| article pdf uploaded. | 19 January 2018 08:34 CET | Version of Record | https://www.mdpi.com/2306-7381/5/1/8/pdf-vor |
