| article html file updated | 12 February 2020 22:27 CET | Update | https://www.mdpi.com/2226-471X/4/3/49 | 
| article html file updated | 23 September 2019 08:53 CEST | Update | - | 
| article pdf uploaded. | 23 September 2019 08:52 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/3/49/pdf | 
| article xml uploaded. | 23 September 2019 08:52 CEST | Update | https://www.mdpi.com/2226-471X/4/3/49/xml | 
| article xml file uploaded | 23 September 2019 08:52 CEST | Update | - | 
| article html file updated | 3 July 2019 02:52 CEST | Update | - | 
| article pdf uploaded. | 3 July 2019 02:51 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/3/49/pdf-vor | 
| article xml file uploaded | 3 July 2019 02:51 CEST | Update | - | 
| article html file updated | 2 July 2019 03:16 CEST | Update | - | 
| article pdf uploaded. | 2 July 2019 03:15 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/3/49/pdf-vor | 
| article xml file uploaded | 2 July 2019 03:15 CEST | Update | - | 
| article html file updated | 27 June 2019 11:34 CEST | Original file | - | 
| article pdf uploaded. | 27 June 2019 11:33 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/3/49/pdf-vor | 
| article xml file uploaded | 27 June 2019 11:33 CEST | Original file | - |