| article html file updated | 6 February 2020 22:01 CET | Update | https://www.mdpi.com/2220-9964/4/3/1530 |
| article html file updated | 6 May 2019 12:57 CEST | Update | - |
| article html file updated | 26 March 2019 09:15 CET | Update | - |
| article html file updated | 14 October 2015 05:04 CEST | Original file | - |
| article xml file uploaded | 14 October 2015 05:04 CEST | Original file | https://www.mdpi.com/2220-9964/4/3/1530/xml |
| article pdf uploaded. | 25 August 2015 10:51 CEST | Updated version of record | https://www.mdpi.com/2220-9964/4/3/1530/pdf |
| article pdf uploaded. | 21 August 2015 14:52 CEST | Version of Record | https://www.mdpi.com/2220-9964/4/3/1530/pdf-vor |
