| article html file updated | 30 August 2025 10:27 CEST | Update | https://www.mdpi.com/1996-1073/12/1/119 | 
| article html file updated | 17 July 2022 19:44 CEST | Update | - | 
| article html file updated | 11 February 2020 05:55 CET | Update | - | 
| article html file updated | 12 October 2019 16:23 CEST | Update | - | 
| article html file updated | 27 April 2019 13:07 CEST | Update | - | 
| article html file updated | 13 April 2019 09:06 CEST | Update | - | 
| article html file updated | 2 April 2019 20:20 CEST | Update | - | 
| article html file updated | 16 January 2019 06:52 CET | Update | - | 
| article html file updated | 30 December 2018 07:04 CET | Original file | - | 
| article pdf uploaded. | 30 December 2018 07:02 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/119/pdf | 
| article xml uploaded. | 30 December 2018 07:02 CET | Update | https://www.mdpi.com/1996-1073/12/1/119/xml | 
| article xml file uploaded | 30 December 2018 07:02 CET | Original file | - |