| article html file updated | 7 February 2020 10:44 CET | Update | https://www.mdpi.com/2225-1146/4/3/30 |
| article html file updated | 21 September 2019 19:44 CEST | Update | - |
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| article html file updated | 24 June 2016 11:12 CEST | Original file | - |
| article xml uploaded. | 24 June 2016 11:11 CEST | Original file | https://www.mdpi.com/2225-1146/4/3/30/xml |
| article pdf uploaded. | 24 June 2016 11:11 CEST | Version of Record | https://www.mdpi.com/2225-1146/4/3/30/pdf |
