| article html file updated | 7 February 2020 14:57 CET | Update | https://www.mdpi.com/2304-8158/5/3/64 |
| article html file updated | 5 May 2019 04:09 CEST | Update | - |
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| article xml uploaded. | 22 September 2016 09:02 CEST | Update | https://www.mdpi.com/2304-8158/5/3/64/xml |
| article pdf uploaded. | 22 September 2016 09:02 CEST | Updated version of record | https://www.mdpi.com/2304-8158/5/3/64/pdf |
| article html file updated | 14 September 2016 05:13 CEST | Original file | - |
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| article pdf uploaded. | 14 September 2016 05:12 CEST | Version of Record | https://www.mdpi.com/2304-8158/5/3/64/pdf-vor |