| article html file updated | 23 October 2025 06:21 CEST | Update | https://www.mdpi.com/2076-2615/5/1/56 |
| article html file updated | 6 February 2020 15:18 CET | Update | - |
| article html file updated | 7 May 2019 02:13 CEST | Update | - |
| article html file updated | 25 March 2019 20:43 CET | Update | - |
| article html file updated | 21 August 2015 06:08 CEST | Update | - |
| article html file updated | 2 July 2015 06:37 CEST | Update | - |
| article xml file uploaded | 2 July 2015 06:37 CEST | Update | https://www.mdpi.com/2076-2615/5/1/56/xml |
| article html file updated | 31 March 2015 12:39 CEST | Update | - |
| article xml file uploaded | 31 March 2015 12:39 CEST | Update | - |
| article html file updated | 22 January 2015 10:31 CET | Original file | - |
| article xml file uploaded | 22 January 2015 10:31 CET | Original file | - |
| article pdf uploaded. | 19 January 2015 14:59 CET | Version of Record | https://www.mdpi.com/2076-2615/5/1/56/pdf |