| article html file updated | 7 February 2020 08:38 CET | Update | https://www.mdpi.com/2076-393X/4/2/17 |
| article html file updated | 5 May 2019 15:55 CEST | Update | - |
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| article html file updated | 4 July 2016 11:48 CEST | Update | - |
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| article xml uploaded. | 13 May 2016 09:01 CEST | Original file | https://www.mdpi.com/2076-393X/4/2/17/xml |
| article pdf uploaded. | 13 May 2016 09:01 CEST | Version of Record | https://www.mdpi.com/2076-393X/4/2/17/pdf |
