| article html file updated | 8 February 2020 02:06 CET | Update | https://www.mdpi.com/2227-7390/5/2/19 |
| article html file updated | 23 September 2019 23:32 CEST | Update | - |
| article html file updated | 4 May 2019 05:20 CEST | Update | - |
| article html file updated | 29 June 2017 11:35 CEST | Update | - |
| article html file updated | 27 March 2017 05:28 CEST | Update | - |
| article html file updated | 23 March 2017 16:03 CET | Update | - |
| article html file updated | 23 March 2017 16:03 CET | Original file | - |
| article xml uploaded. | 23 March 2017 16:02 CET | Original file | https://www.mdpi.com/2227-7390/5/2/19/xml |
| article pdf uploaded. | 23 March 2017 16:02 CET | Version of Record | https://www.mdpi.com/2227-7390/5/2/19/pdf |
