| article html file updated | 8 February 2020 02:07 CET | Update | https://www.mdpi.com/2309-608X/3/2/17 |
| article html file updated | 23 September 2019 23:39 CEST | Update | - |
| article html file updated | 4 May 2019 05:17 CEST | Update | - |
| article html file updated | 27 March 2017 05:29 CEST | Update | - |
| article html file updated | 23 March 2017 12:37 CET | Original file | - |
| article xml uploaded. | 23 March 2017 12:36 CET | Original file | https://www.mdpi.com/2309-608X/3/2/17/xml |
| article pdf uploaded. | 23 March 2017 12:36 CET | Version of Record | https://www.mdpi.com/2309-608X/3/2/17/pdf |
