| article html file updated | 23 October 2025 06:17 CEST | Update | https://www.mdpi.com/2076-2615/3/2/318 |
| article html file updated | 6 February 2020 01:34 CET | Update | - |
| article html file updated | 20 March 2019 21:09 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/2076-2615/3/2/318/xml |
| article html file updated | 17 June 2015 08:32 CEST | Original file | - |
| article pdf uploaded. | 18 April 2013 15:04 CEST | Updated version of record | https://www.mdpi.com/2076-2615/3/2/318/pdf |
| article pdf uploaded. | 17 April 2013 12:12 CEST | Version of Record | https://www.mdpi.com/2076-2615/3/2/318/pdf-vor |
