| article html file updated | 8 February 2020 02:06 CET | Update | https://www.mdpi.com/2075-163X/7/4/49 |
| article html file updated | 23 September 2019 23:37 CEST | Update | - |
| article html file updated | 4 May 2019 05:18 CEST | Update | - |
| article html file updated | 28 April 2017 10:00 CEST | Update | - |
| article html file updated | 27 March 2017 05:29 CEST | Update | - |
| article html file updated | 24 March 2017 22:27 CET | Update | - |
| article html file updated | 24 March 2017 06:43 CET | Original file | - |
| article xml uploaded. | 24 March 2017 06:42 CET | Original file | https://www.mdpi.com/2075-163X/7/4/49/xml |
| article pdf uploaded. | 24 March 2017 06:42 CET | Updated version of record | https://www.mdpi.com/2075-163X/7/4/49/pdf |
| article pdf uploaded. | 23 March 2017 12:45 CET | Version of Record | https://www.mdpi.com/2075-163X/7/4/49/pdf-vor |
