| article html file updated | 12 February 2020 18:45 CET | Update | https://www.mdpi.com/2504-2289/3/2/32 | 
| article html file updated | 21 October 2019 15:50 CEST | Update | - | 
| article html file updated | 26 June 2019 08:56 CEST | Original file | - | 
| article pdf uploaded. | 26 June 2019 08:55 CEST | Updated version of record | https://www.mdpi.com/2504-2289/3/2/32/pdf | 
| article xml uploaded. | 26 June 2019 08:55 CEST | Update | https://www.mdpi.com/2504-2289/3/2/32/xml | 
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| article pdf uploaded. | 10 June 2019 16:11 CEST | Version of Record | https://www.mdpi.com/2504-2289/3/2/32/pdf-vor | 
| article xml file uploaded | 10 June 2019 16:11 CEST | Original file | - |