| article html file updated | 29 August 2025 22:52 CEST | Update | https://www.mdpi.com/2077-0472/6/2/12 |
| article html file updated | 16 July 2022 02:02 CEST | Update | - |
| article html file updated | 7 February 2020 06:20 CET | Update | - |
| article html file updated | 5 May 2019 20:33 CEST | Update | - |
| article html file updated | 27 June 2016 12:10 CEST | Update | - |
| article html file updated | 6 April 2016 11:00 CEST | Original file | - |
| article xml uploaded. | 6 April 2016 10:59 CEST | Original file | https://www.mdpi.com/2077-0472/6/2/12/xml |
| article pdf uploaded. | 6 April 2016 10:59 CEST | Updated version of record | https://www.mdpi.com/2077-0472/6/2/12/pdf |
| article pdf uploaded. | 24 March 2016 13:18 CET | Version of Record | https://www.mdpi.com/2077-0472/6/2/12/pdf-vor |
