| article html file updated | 9 February 2020 03:12 CET | Update | https://www.mdpi.com/2305-6320/5/1/9 |
| article html file updated | 2 May 2019 01:59 CEST | Update | N/A |
| article html file updated | 18 April 2019 00:15 CEST | Update | N/A |
| article html file updated | 28 March 2019 15:52 CET | Update | N/A |
| article html file updated | 29 March 2018 07:56 CEST | Update | N/A |
| article html file updated | 27 March 2018 16:34 CEST | Update | N/A |
| article html file updated | 16 January 2018 07:33 CET | Original file | N/A |
| article xml uploaded. | 16 January 2018 07:31 CET | Original file | https://www.mdpi.com/2305-6320/5/1/9/xml |
| article pdf uploaded. | 16 January 2018 07:31 CET | Version of Record | https://www.mdpi.com/2305-6320/5/1/9/pdf |