| article html file updated | 23 October 2025 06:18 CEST | Update | https://www.mdpi.com/2076-2615/3/2/513 |
| article html file updated | 28 September 2025 19:20 CEST | Update | - |
| article html file updated | 29 August 2025 20:40 CEST | Update | - |
| article html file updated | 15 July 2022 22:20 CEST | Update | - |
| article html file updated | 6 February 2020 02:30 CET | Update | - |
| article html file updated | 20 March 2019 23:30 CET | Update | - |
| article html file updated | 29 June 2015 04:17 CEST | Update | - |
| article xml file uploaded | 29 June 2015 04:17 CEST | Original file | https://www.mdpi.com/2076-2615/3/2/513/xml |
| article html file updated | 17 June 2015 10:02 CEST | Original file | - |
| article pdf uploaded. | 6 June 2013 15:20 CEST | Updated version of record | https://www.mdpi.com/2076-2615/3/2/513/pdf |
| article pdf uploaded. | 6 June 2013 09:37 CEST | Version of Record | https://www.mdpi.com/2076-2615/3/2/513/pdf-vor |