| article html file updated | 8 February 2020 02:51 CET | Update | https://www.mdpi.com/2218-273X/7/2/35 |
| article html file updated | 24 September 2019 03:46 CEST | Update | - |
| article html file updated | 4 May 2019 03:42 CEST | Update | - |
| article html file updated | 28 June 2017 12:43 CEST | Update | - |
| article html file updated | 4 April 2017 12:28 CEST | Original file | - |
| article xml uploaded. | 4 April 2017 12:27 CEST | Update | https://www.mdpi.com/2218-273X/7/2/35/xml |
| article pdf uploaded. | 4 April 2017 12:27 CEST | Version of Record | https://www.mdpi.com/2218-273X/7/2/35/pdf |
