| article html file updated | 9 February 2020 03:30 CET | Update | https://www.mdpi.com/2227-9067/5/1/13 |
| article html file updated | 30 September 2019 00:47 CEST | Update | N/A |
| article html file updated | 2 May 2019 01:21 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:40 CEST | Update | N/A |
| article html file updated | 28 March 2019 16:35 CET | Update | N/A |
| article html file updated | 1 February 2018 07:49 CET | Update | N/A |
| article html file updated | 18 January 2018 15:30 CET | Original file | N/A |
| article xml uploaded. | 18 January 2018 15:29 CET | Original file | https://www.mdpi.com/2227-9067/5/1/13/xml |
| article pdf uploaded. | 18 January 2018 15:29 CET | Version of Record | https://www.mdpi.com/2227-9067/5/1/13/pdf |
