| article html file updated | 7 February 2020 06:39 CET | Update | https://www.mdpi.com/2218-273X/6/2/17 |
| article html file updated | 5 May 2019 19:55 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:44 CET | Update | N/A |
| article html file updated | 27 June 2016 08:04 CEST | Update | N/A |
| article html file updated | 31 March 2016 08:46 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2016 08:44 CEST | Original file | https://www.mdpi.com/2218-273X/6/2/17/xml |
| article pdf uploaded. | 31 March 2016 08:44 CEST | Version of Record | https://www.mdpi.com/2218-273X/6/2/17/pdf |
