| article html file updated | 7 February 2020 22:25 CET | Update | https://www.mdpi.com/2073-4352/7/2/34 |
| article html file updated | 23 September 2019 02:36 CEST | Update | N/A |
| article html file updated | 4 May 2019 13:13 CEST | Update | N/A |
| article html file updated | 2 March 2017 03:36 CET | Update | N/A |
| article html file updated | 7 February 2017 10:34 CET | Original file | N/A |
| article xml uploaded. | 7 February 2017 10:10 CET | Original file | https://www.mdpi.com/2073-4352/7/2/34/xml |
| article pdf uploaded. | 7 February 2017 10:10 CET | Updated version of record | https://www.mdpi.com/2073-4352/7/2/34/pdf |
| article pdf uploaded. | 28 January 2017 09:53 CET | Version of Record | https://www.mdpi.com/2073-4352/7/2/34/pdf-vor |
