| article html file updated | 7 February 2020 06:49 CET | Update | https://www.mdpi.com/2076-3417/6/4/97 |
| article html file updated | 5 May 2019 19:36 CEST | Update | - |
| article html file updated | 27 March 2019 01:01 CET | Update | - |
| article html file updated | 27 April 2016 11:18 CEST | Update | - |
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| article xml uploaded. | 25 April 2016 11:00 CEST | Update | https://www.mdpi.com/2076-3417/6/4/97/xml |
| article html file updated | 25 April 2016 08:26 CEST | Update | - |
| article pdf uploaded. | 25 April 2016 08:24 CEST | Updated version of record | https://www.mdpi.com/2076-3417/6/4/97/pdf |
| article html file updated | 5 April 2016 08:15 CEST | Original file | - |
| article pdf uploaded. | 5 April 2016 08:13 CEST | Version of Record | https://www.mdpi.com/2076-3417/6/4/97/pdf-vor |
