| article html file updated | 7 February 2020 23:00 CET | Update | https://www.mdpi.com/2305-6320/4/1/7 |
| article html file updated | 23 September 2019 05:52 CEST | Update | - |
| article html file updated | 4 May 2019 12:00 CEST | Update | - |
| article html file updated | 13 February 2017 04:04 CET | Original file | - |
| article xml uploaded. | 13 February 2017 04:03 CET | Original file | https://www.mdpi.com/2305-6320/4/1/7/xml |
| article pdf uploaded. | 13 February 2017 04:03 CET | Updated version of record | https://www.mdpi.com/2305-6320/4/1/7/pdf |
| article pdf uploaded. | 10 February 2017 03:47 CET | Updated version of record | https://www.mdpi.com/2305-6320/4/1/7/pdf-vor |
| article pdf uploaded. | 9 February 2017 16:39 CET | Version of Record | https://www.mdpi.com/2305-6320/4/1/7/pdf-vor |
