| article html file updated | 12 February 2020 00:01 CET | Update | https://www.mdpi.com/1424-8220/19/6/1407 | 
| article html file updated | 17 October 2019 00:31 CEST | Update | - | 
| article html file updated | 25 April 2019 23:24 CEST | Update | - | 
| article html file updated | 11 April 2019 18:27 CEST | Update | - | 
| article html file updated | 10 April 2019 11:49 CEST | Update | - | 
| article html file updated | 4 April 2019 17:56 CEST | Update | - | 
| article html file updated | 27 March 2019 11:01 CET | Original file | - | 
| article pdf uploaded. | 27 March 2019 10:59 CET | Updated version of record | https://www.mdpi.com/1424-8220/19/6/1407/pdf | 
| article xml uploaded. | 27 March 2019 10:59 CET | Update | https://www.mdpi.com/1424-8220/19/6/1407/xml | 
| article xml file uploaded | 27 March 2019 10:59 CET | Update | - | 
| article pdf uploaded. | 21 March 2019 17:12 CET | Version of Record | https://www.mdpi.com/1424-8220/19/6/1407/pdf-vor | 
| article xml file uploaded | 21 March 2019 17:12 CET | Original file | - |