| article html file updated | 29 August 2025 23:13 CEST | Update | https://www.mdpi.com/1422-0067/17/6/904 |
| article html file updated | 16 July 2022 02:36 CEST | Update | - |
| article html file updated | 7 February 2020 09:56 CET | Update | - |
| article html file updated | 21 September 2019 18:43 CEST | Update | - |
| article html file updated | 5 May 2019 13:23 CEST | Update | - |
| article html file updated | 27 March 2019 07:04 CET | Update | - |
| article html file updated | 29 June 2016 03:50 CEST | Update | - |
| article html file updated | 8 June 2016 12:12 CEST | Original file | - |
| article xml uploaded. | 8 June 2016 12:10 CEST | Original file | https://www.mdpi.com/1422-0067/17/6/904/xml |
| article pdf uploaded. | 8 June 2016 12:10 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/6/904/pdf |