| article html file updated | 8 February 2020 15:14 CET | Update | https://www.mdpi.com/2227-9032/5/3/53 |
| article html file updated | 26 September 2019 22:22 CEST | Update | - |
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| article html file updated | 30 September 2017 12:00 CEST | Update | - |
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| article xml uploaded. | 4 September 2017 11:26 CEST | Original file | https://www.mdpi.com/2227-9032/5/3/53/xml |
| article pdf uploaded. | 4 September 2017 11:26 CEST | Version of Record | https://www.mdpi.com/2227-9032/5/3/53/pdf |
