| article html file updated | 6 February 2020 16:06 CET | Update | https://www.mdpi.com/1999-4915/7/3/857 |
| article html file updated | 7 May 2019 00:42 CEST | Update | - |
| article html file updated | 25 March 2019 22:01 CET | Update | - |
| article html file updated | 21 August 2015 07:54 CEST | Update | - |
| article html file updated | 31 March 2015 12:40 CEST | Update | - |
| article xml file uploaded | 31 March 2015 12:40 CEST | Update | https://www.mdpi.com/1999-4915/7/3/857/xml |
| article html file updated | 3 March 2015 07:03 CET | Update | - |
| article xml file uploaded | 3 March 2015 07:03 CET | Update | - |
| article html file updated | 28 February 2015 03:12 CET | Original file | - |
| article xml file uploaded | 28 February 2015 03:12 CET | Original file | - |
| article pdf uploaded. | 25 February 2015 09:36 CET | Updated version of record | https://www.mdpi.com/1999-4915/7/3/857/pdf |
| article pdf uploaded. | 20 February 2015 15:37 CET | Version of Record | https://www.mdpi.com/1999-4915/7/3/857/pdf-vor |
