| article html file updated | 11 February 2020 20:44 CET | Update | https://www.mdpi.com/2075-4442/7/3/21 | 
| article html file updated | 16 October 2019 05:42 CEST | Update | - | 
| article html file updated | 26 April 2019 06:23 CEST | Update | - | 
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| article html file updated | 7 March 2019 11:23 CET | Original file | - | 
| article pdf uploaded. | 7 March 2019 11:21 CET | Version of Record | https://www.mdpi.com/2075-4442/7/3/21/pdf | 
| article xml uploaded. | 7 March 2019 11:21 CET | Update | https://www.mdpi.com/2075-4442/7/3/21/xml | 
| article xml file uploaded | 7 March 2019 11:21 CET | Original file | - |