| article html file updated | 8 February 2020 02:13 CET | Update | https://www.mdpi.com/2311-553X/3/2/16 |
| article html file updated | 24 September 2019 00:07 CEST | Update | - |
| article html file updated | 4 May 2019 05:05 CEST | Update | - |
| article html file updated | 29 June 2017 11:40 CEST | Update | - |
| article html file updated | 27 March 2017 05:32 CEST | Update | - |
| article html file updated | 24 March 2017 14:34 CET | Update | - |
| article html file updated | 24 March 2017 14:34 CET | Original file | - |
| article xml uploaded. | 24 March 2017 14:33 CET | Original file | https://www.mdpi.com/2311-553X/3/2/16/xml |
| article pdf uploaded. | 24 March 2017 14:33 CET | Version of Record | https://www.mdpi.com/2311-553X/3/2/16/pdf |
