| article html file updated | 6 February 2020 20:57 CET | Update | https://www.mdpi.com/2077-0472/5/3/492 |
| article html file updated | 6 May 2019 15:10 CEST | Update | - |
| article html file updated | 26 March 2019 07:11 CET | Update | - |
| article html file updated | 14 October 2015 10:34 CEST | Update | - |
| article xml file uploaded | 14 October 2015 10:34 CEST | Original file | https://www.mdpi.com/2077-0472/5/3/492/xml |
| article html file updated | 21 August 2015 15:11 CEST | Original file | - |
| article pdf uploaded. | 24 July 2015 09:15 CEST | Updated version of record | https://www.mdpi.com/2077-0472/5/3/492/pdf |
| article pdf uploaded. | 23 July 2015 09:46 CEST | Version of Record | https://www.mdpi.com/2077-0472/5/3/492/pdf-vor |
