| article html file updated | 11 February 2020 14:31 CET | Update | https://www.mdpi.com/2313-433X/5/2/27 | 
| article html file updated | 14 October 2019 15:51 CEST | Update | - | 
| article html file updated | 26 April 2019 19:44 CEST | Update | - | 
| article html file updated | 12 April 2019 15:37 CEST | Update | - | 
| article html file updated | 3 April 2019 16:55 CEST | Update | - | 
| article html file updated | 1 March 2019 18:43 CET | Update | - | 
| article html file updated | 28 February 2019 17:30 CET | Update | - | 
| article html file updated | 22 February 2019 02:28 CET | Original file | - | 
| article pdf uploaded. | 21 February 2019 06:45 CET | Updated version of record | https://www.mdpi.com/2313-433X/5/2/27/pdf | 
| article xml uploaded. | 21 February 2019 06:45 CET | Update | https://www.mdpi.com/2313-433X/5/2/27/xml | 
| article xml file uploaded | 21 February 2019 06:45 CET | Update | - | 
| article pdf uploaded. | 8 February 2019 10:54 CET | Version of Record | https://www.mdpi.com/2313-433X/5/2/27/pdf-vor | 
| article xml file uploaded | 8 February 2019 10:54 CET | Original file | - |