| article html file updated | 6 February 2020 17:11 CET | Update | https://www.mdpi.com/2073-4344/5/2/561 |
| article html file updated | 6 May 2019 22:47 CEST | Update | - |
| article html file updated | 25 March 2019 23:54 CET | Update | - |
| article html file updated | 21 August 2015 09:44 CEST | Update | - |
| article html file updated | 30 June 2015 08:04 CEST | Original file | - |
| article xml file uploaded | 30 June 2015 08:04 CEST | Original file | https://www.mdpi.com/2073-4344/5/2/561/xml |
| article pdf uploaded. | 2 April 2015 09:40 CEST | Updated version of record | https://www.mdpi.com/2073-4344/5/2/561/pdf |
| article pdf uploaded. | 31 March 2015 15:40 CEST | Version of Record | https://www.mdpi.com/2073-4344/5/2/561/pdf-vor |
