| article html file updated | 7 February 2020 01:00 CET | Update | https://www.mdpi.com/2305-6320/2/4/328 |
| article html file updated | 21 September 2019 06:24 CEST | Update | N/A |
| article html file updated | 6 May 2019 07:04 CEST | Update | N/A |
| article html file updated | 26 March 2019 14:44 CET | Original file | N/A |
| article pdf uploaded. | 16 November 2015 13:23 CET | Version of Record | https://www.mdpi.com/2305-6320/2/4/328/pdf |
| article xml uploaded. | 16 November 2015 13:23 CET | Original file | https://www.mdpi.com/2305-6320/2/4/328/xml |
