| article html file updated | 6 February 2020 22:51 CET | Update | https://www.mdpi.com/2220-9964/4/3/1770 |
| article html file updated | 21 September 2019 03:29 CEST | Update | - |
| article html file updated | 6 May 2019 11:14 CEST | Update | - |
| article html file updated | 26 March 2019 10:51 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/2220-9964/4/3/1770/xml |
| article pdf uploaded. | 16 September 2015 15:02 CEST | Version of Record | https://www.mdpi.com/2220-9964/4/3/1770/pdf |
