| article html file updated | 6 February 2020 08:47 CET | Update | https://www.mdpi.com/2220-9964/3/2/599 |
| article html file updated | 7 May 2019 15:31 CEST | Update | - |
| article html file updated | 21 March 2019 15:58 CET | Update | - |
| article html file updated | 20 August 2015 04:14 CEST | Update | - |
| article html file updated | 21 April 2015 12:28 CEST | Original file | - |
| article xml file uploaded | 21 April 2015 12:28 CEST | Original file | https://www.mdpi.com/2220-9964/3/2/599/xml |
| article pdf uploaded. | 22 April 2014 15:08 CEST | Version of Record | https://www.mdpi.com/2220-9964/3/2/599/pdf |
