| article html file updated | 9 February 2020 11:51 CET | Update | https://www.mdpi.com/1424-8220/18/4/1033 | 
| article html file updated | 2 October 2019 02:58 CEST | Update | - | 
| article html file updated | 1 May 2019 07:27 CEST | Update | - | 
| article html file updated | 17 April 2019 07:27 CEST | Update | - | 
| article html file updated | 29 March 2019 11:10 CET | Update | - | 
| article html file updated | 7 May 2018 04:20 CEST | Update | - | 
| article html file updated | 30 March 2018 10:31 CEST | Original file | - | 
| article xml uploaded. | 30 March 2018 10:30 CEST | Original file | https://www.mdpi.com/1424-8220/18/4/1033/xml | 
| article pdf uploaded. | 30 March 2018 10:30 CEST | Updated version of record | https://www.mdpi.com/1424-8220/18/4/1033/pdf | 
| article pdf uploaded. | 29 March 2018 18:14 CEST | Version of Record | https://www.mdpi.com/1424-8220/18/4/1033/pdf-vor |