| article html file updated | 29 August 2025 23:12 CEST | Update | https://www.mdpi.com/2079-8954/4/2/24 | 
| article html file updated | 16 July 2022 02:35 CEST | Update | - | 
| article html file updated | 7 February 2020 09:56 CET | Update | - | 
| article html file updated | 5 May 2019 13:23 CEST | Update | - | 
| article html file updated | 27 March 2019 07:03 CET | Update | - | 
| article html file updated | 4 July 2016 11:08 CEST | Update | - | 
| article html file updated | 8 June 2016 15:57 CEST | Original file | - | 
| article xml uploaded. | 8 June 2016 15:56 CEST | Original file | https://www.mdpi.com/2079-8954/4/2/24/xml | 
| article pdf uploaded. | 8 June 2016 15:56 CEST | Version of Record | https://www.mdpi.com/2079-8954/4/2/24/pdf |